STEAM K-2 STEAM Curriculum K-2 My name is Tyler Butterfield, I have been in the education field for almost ten years. I worked as an afterschool teacher all through college and am now a full-time teacher. I have a passion for getting kids up and learning in the classroom and making the classroom the most engaging place possible. I hope this resource helps bring some of your class time to life for you and your students. This resource is not to be used: •By an entire grade level, school or district without purchasing the proper number of licenses. For a large number of licensees, please email me at tbutterfield@gmail.com •As part of a product listed for sale or free by another individual. •On shared databases •Online in any way other than on a password protected website for student use only Curriculum Breakdown About the class This is an enrichment class designed to allow kids to use science, technology, the arts, and math to engage in experiential learning, use problem solving skills, and collaborate. They will work through the engineering process as well as the creative process. Teams Students will collaborate in teams during the learning process. This allows kids to listen to different perspectives, question, and use critical analysis, which results in deeper solutions and higher performance. Objectives Each objective keeps the lesson on task and ensures each child has the opportunity to engage in their learning experience. Equipment/Supplies This section has all the things you will need to gather before each lesson. Certain supplies amounts will depend on the number of students in the class. Instruction This section reflects the objectives. Each point is made to ensure the objective is being covered in the lesson. Add any additional information where needed. Table of Contents Week 1: Introduction Lesson 1- Team Building Lesson 2- Engineering process Week 2: Electricity Lesson 3- Circuit boards Lesson 4- Lemon powered batteries Week 3: Water/transportation Lesson 5- Boats Lesson 6- Bridges Week 4: Simple Machines Lesson 7- Finger Basketball Lesson 8- Pulley system Week 5: Culture Lesson 9- Volcanoes Lesson 10- Teepee Week 6: Rockets Lesson 11- Baking Soda rockets Lesson 12- Pressure Bottle Rockets Week 7: Chemical Reaction Lesson 13- Penny changing Lesson 14- Paint Bombs Week 8: Games Lesson 15- Marble Maze Lesson 16- Rube Goldberg Week 9: Food Lesson 17- Food towers Lesson 18- S’mores oven Week 1 Lesson 1- Introduction/team building (45 minutes) Objective: • Get to know each other, team building exercises to build community. Supplies: • Markers. • Yarn • Butcher paper (Have a student hand out materials before explain activity) Instruction: • Introduce class rules/expectations (10 minutes) • Entering classroom • How to get class attention • How to get supplies • Level of talking • Cleaning up • Team building activity • Put students in teams of 3 or 5 depending on number of students in class. (5 minutes) • Explain activity (7 minutes) • First: you will tie each piece of string to your marker • (demonstrate this) • Then: you will each hold the end of one piece of string. • Your goal is to work together to write one of your names with the marker. • You cannot touch the marker with your hands. You may only touch the string. • (Give students 12-15 minutes to work depending on how they are doing.) • (while students are working walk around and comment on how well they are working together) Clean up: • Have students untie their string from the markers. • Take up markers and string. Conclusion: • Ask students if the activity was easy or challenging. • What about it made it easy or challenging? • What did you learn from the activity? • What would you do differently if you were to do it again? Lesson 2- Engineering Process (50 minutes) Objective: • Learn and practice using the engineering process. Supplies: • iPads/computers/books on skyscrapers • Straws • Plates • Tape • Paper • Pencils • Printout of the engineering process model for each group Teaching Points: • Ask students what they already know about the engineering process before handing out the model. (Some may know a lot; some may have never heard of it) (3 minutes) • Have a student hand out print out of engineering process. • For each lesson the first step is to ask a question or define the problem. At the beginning of every lesson, you will give students a problem or question and they will go through the engineering process to solve the given problem/question. • For example, the problem for this lesson is that Nashville is trying to have the tallest and strongest skyscraper in the United States. They have asked elementary schools all over TN to build a model of a building that they can build in Nashville. • After giving students the problem of the day, ask students what the next step in the process is. • Provide students with iPads or laptops or books. (Whatever you have access to) • Give students time to research skyscrapers/towers. (6 minutes) • Next have students tell you what the next step is: Imagine (6 minutes) • Give students time to talk about their design • Ask again what the next step is: Plan (8 minutes) • Tell students that during this time they will talk about how they will build their design. They should draw the design and talk about what each person’s job is. • Have students tell you the next step: Create (10 minutes) • During this step students will create their model. • The next step is to test their models. (8 minutes) • Think of things that could affect a building. Wind, Planes, helicopters, birds, Etc. • The next step is to improve their model. (5 minutes) • (Ideally, they would improve their model and go through the planning and building and testing steps again but only do this if you have extra time) • If you are short on time, you can have them look at each other’s models and talk about what worked and what won’t work. Then have them talk about what they would change to make their model better. Clean up: • Use last 9 minutes to clean up. WEEK 2 Lesson 3-Circuit Board (50 minutes) Objective: • Learn how a circuit works Supplies: • Pre-cut Christmas lights (make sure to remove a small bit of the plastic covering at the tip of each piece to reveal a little bit of wire) • Aluminum foil • Brass Fasteners • 9 bolt batteries • Cardboard or file folders (anything sturdier than a piece of paper) • Writing utensil • Paper • Tape (use this to tape circuit down) Instruction: • Ask students what prior knowledge they have about circuits. • Have them give examples of circuits they have seen before. • Tell students that it is their job to design a pattern of Christmas lights for a display in downtown Nashville. They can create any design they want as long as it is a complete circuit. (It is a complete circuit when all of the lights light up when you flip the switch). They will make their circuit on the cardboard or whatever you provide for them. (10 minutes for questions and directions) • They can go through the engineering process by first researching how circuits work. (If you have computers or iPads available) otherwise this step can be skipped. (10 minutes) • Next, they can talk with their team on what kind of design they want to use. (5 minutes) • Then they can draw their circuit. (5 minutes) • Finally, they can create their circuit and test it. (10 minutes) • If all their lights don’t light up, they will know they have done something wrong, and their circuit is not complete. They can then figure out the problem as a group and work together to fix it. (10 minutes) Clean Up: • Use the last 10 minutes to clean up. (Batteries and Christmas lights can be reused so you may want to collect those.) Lesson 4: lemon powered batteries (45 minutes) Objective: • Discover new ways to power a battery. Supplies: • Lemons (2 for every 2 students) • Galvanized nails (1 per lemon) • Copper pieces (1 per lemon) • Alligator clip wires (3 wires per 2 students) • A small light to power up (1 for every 2 students) • iPad or computers (if you have access, 1 for every 2 students) (Have student hand out supplies before you go over the activity) Instruction: • Ask students about prior battery knowledge. • Discuss with students how batteries work and why they work this way. • Have students discuss with their partner what they think they are going to do with each of the supplies they have been given. • Tell students why they are creating a light powered by a lemon, there was a massive storm that cut the power throughout the state, and they are creating a solution to present to the Governor. • Explain the activity and what to expect from doing this. • Have students research, on the iPad/computers, different ways to power things, such as lights, without electricity. • Have students roll the lemons to release the juice and pulp inside. • Have students put one galvanized nail and one piece of copper into opposite sides of both lemons. • Connect the ends of one wire to a galvanized nail in one lemon and a copper piece in another. • Connect the second wire to a galvanized nail of one lemon. • Connect the third wire to the copper piece of one lemon. • Connect the open ends of the wires to the small light. • Turn the light on and watch it glow. • If you have time at the end have group discussion on the ways you could improve this activity and if there would be a better way to power these lights. (Give students 10-12 minutes to work depending on how they are doing.) (While students are working walk around and comment on their work and question the way they are doing things and if their thoughts on the activity.) Clean-up: • Have students unclip all of the wires from the lights, galvanized nails, and copper pieces. • Have students take all the galvanized nails and copper pieces out of the lemons and wipe them off and put them in baggies. • Make sure all iPads/computers are turned back in. • Have students throw the lemons away. • Make sure the students wipe their workspaces off. Conclusion: • Ask students what about the activity was challenging or easy. • Ask the students if there is a different way to turn the light on other than using a lemon that would work better. WEEK 3 Lesson 5: Build a paddle boat (45 minutes) Objective: • Create a mini paddle boat that can float for the longest period of time. Supplies: • Shallow plastic containers (1 for every 2 students) • 3 large rubber bands (for each pair of students) • 2 pencils (works best with wooden pencils, for each pair of students) • Cardboard pieces (to make paddles out of) • iPad/computers (1 for each pair of students, if you have access to them) (Have a student hand out supplies before you explain the activity.) Instruction: • Ask students about prior paddle boat knowledge. • Discuss with students why we have paddle boats and why they work the way they do. • Have students discuss with their partner what they think they are going to do with each of the supplies they have been given. • Tell the students the weather channel is predicting a major flood and there will not be enough gas to power all the boats needed, the state has asked students to create a more energy efficient prototype paddle boat. • Have the students put the pencils on both sides of the plastic container and wrap the rubber band around the container and pencils. • Have the students put another rubber band around the back end of the pencils. • Then have the students put the last rubber band around the front end of the pencils. • Ask the students why they would add these 2 rubber bands. • Students need to cut the cardboard into 4 small pieces, they need to be small enough to fit in between the 2 pencils. • The students should make a cut to the middle of each piece of the cardboard (make sure they do not cut all the way through). • Have students put 2 pieces of the cardboard together by sliding one slit into the other, ask the students what they think this part is for. • Have students repeat the last step with the other 2 pieces of cardboard. • Then students should fit the paddles onto the rubber bands. • Ask the students how they think they will get the paddles to work. If they do not figure it out have them twist the paddles on the rubber bands to wind them up. • Discuss with the whole group what they each of the paddles is doing for the boat. • Without letting the rubber bands untwist have students place their boats in water and let go. • Discuss which way the boats go. • If you have time have students research each of the questions you presented them with during the activity. (Give students 12-15 minutes to work depending on how they are doing.) (While students are working walk around and complement each pairs work. Ask each pair questions they should research and answer for the class.) Clean-up: • Have students take apart their boats. • Have the students throw the cardboard away, put the pencils back in their containers, make a pile of the rubber bands, and stack up the plastic containers. • Make sure all the water is dumped out and wiped up. Conclusion: • Ask students to tell the class what they researched. • Ask students if after researching these things if there is anything they would change about the design. Lesson 6: Bridge building (45 minutes) Objective: • To build a bridge and decide which design would hold more weight. Supplies: • 2 rolls of masking tape • 3 bags of popsicle sticks • 3 boxes of spaghetti noodles • 2 bags of marshmallows • Paper • Pencils • Coins (these will be what you use to test the bridges) • iPad/computers (1 for each group, if available) (Have a student put supplies in piles on one table so that the teacher can call groups up at a time to pick out their supplies.) Instruction: • Ask students about their prior knowledge of bridges and how they think they were built. • Ask students to discuss, in their groups of 3, whether they think a bridge made from popsicle sticks or spaghetti noodles will hold more weight. • After students have discussed which bridge, they think will hold more weight have them create a design of their bridges. They may use the iPads/computers to look at bridge designs to get ideas, but they may not copy an exact design. • Call groups up one at a time to get their supplies. • Once all of the groups have their supplies and have created a design plan, they may begin building their bridges. • While students are working walk around and comment on their designs and ask them why they chose the design and the supplies they did. • As groups start to finish have students test the weight limit of their bridges by putting pennies on the bridge, do this until you find the bridge that holds the most weight. (Give students 12-15 minutes to work on this activity depending on how they are doing.) Clean-up: • Have students throw away all of their supplies, except the pennies. • Make sure everything is picked up off the ground. Conclusion: • Ask students why they think the bridge, that won, held the weight that it did. • Ask the groups to share with the whole class why they chose the bridge they did and what they would change about their design if they were to do this activity again. WEEK 4 Lesson 7: Finger basketball (45 minutes) Objectives: • To build a catapult that will be able to shoot a Ping-Pong ball into a plastic cup. Supplies: • Ping-pong ball (1 for every 2 students) • Rubber bands (2 bags) • Large popsicle sticks (3 bags) • Plastic cups (1 for every 2 students) • Paper • Pencils • iPad/computers (1 for every 2 students, if you have access) (Have a student hand out supplies before you explain the activity.) Instruction: • Ask students about prior catapult knowledge. • Allow students time to look at some pictures of catapults to get an idea for their own. They may not copy one of these ideas. • Have students discuss with their group what they want their catapult to look like and draw a design. • After students have their design drawn, they may begin to work with their partner on their catapult. • While the students are working walk around and ask questions about their design and comment on their work. • Once students have finished putting their catapults together, tested, and modified have the students present their catapults to the class. Clean-up: • Have students put all of their supplies back in their containers and make sure all of their trash is thrown away. Conclusion: • Ask students what parts of their catapults they modified, if any. • Ask students what they would have modified if they had more time. • Discuss why catapults are used. Lesson 8- Pulley System (48 minutes) Objective: • Work with a team to build a pulley system Supplies: • String • Scissors • Solo cups (or whatever kind of cup/container you get) Instruction: • Show kids videos or have them look up videos on different types of pulleys. - https://www.youtube.com/watch?v=LiBcur1aqcg • Have students create the actually pulley. • Give them the supplies and have them discuss with their groups how they will make their pulley. • As a class share idea before they make it. • If groups need help you can guide them with these directions. • You can precut holes in the side of the cup, or you can let them do it. You will need two holes, one in each side of the cup. • Next pull the string through the holes and tie it to where it will make a triangle shape. (Like in the picture) • Cut a yard long piece of string and thread it through the handle you created with the other string. (See picture) • Now that you have made the pulley talk to the kids about what it does and how it will work. • Talk about how the container moves along the string. • What causes the container to go faster, slower, be unstable, and so on. • How would the pulley change with the material of the string? of the container? • How would the pulley be impacted by the weight/shape of the load? • Next let them test their pulley • You can hook the pulley to a doorknob, a cabinet handle or anything like that. • Have something for them to put in their pulleys. Coins, paperclips, anything small enough to put in the cup. • Let them see how much their cup will hold without breaking. Clean Up: • Use the last 12 minutes to clean up WEEK 5 Lesson 9- Volcanoes (45 Minutes) Objective: • To understand the reasons why a volcano erupts. Supplies: • Empty mini water bottles (1 per group) • Tape • Paper (LOTS) • Glue (a big bottle of Elmer's glue) • A laptop (Try to a bucket of materials for each group already prepared before your class begins. Have a student hand out a bucket of materials to each group.) Instructions: • Split students into groups, of no more than 5 students a group, and have them spread out throughout the classroom. • Ask students what they already know about volcanos. • Watch a video on instructions of building a replica volcano. • After watching a video on building a volcano ask your students if there is anything they would change about the process and if so, what would it be. • Have each group begin to think about how they should build their volcano. • After the groups have discussed their plans, they may begin to build their volcanos. (While groups are discussing a building, their volcanos go around and comment on how well they are doing and ask them questions on why they did each thing the way they did.) • Give students a 5-minute warning before it is time to clean up. Clean up: • Have students bring their volcanos (finished or unfinished, time is up) to the front of the classroom where it is easy for you to get. • Have each group clean up their area and bring the extra supplies back to the front of the room in the buckets they came in (if you were able to get supplies in buckets) • Make sure there is nothing on the floor or any of the tables Conclusion: • Allow students time to ask questions to one another and you about how volcanos work (remember some questions might be better answered during day 2 of this project because that is the day you make the volcanos explode.) Lesson 10- Teepees 50 minutes Objective: • Build a teepee for you and your Native American family. Supplies: • Popsicle sticks (or real sticks if you can find enough that would be awesome!) • Yarn • Scissors • Feathers • Paper Instruction: • Tell students…You are part of a Native American Tribe. You just started your own tribe, so you have no name and nowhere to live. • The first thing you must do is come up with your tribe’s name. • The next thing you need to do is build teepees for people to live in, so they don’t leave your tribe and join another tribe. • Give students 5 minutes to come up with a tribe name. • Tell them they can only use the materials you provide them, and they cannot have more than what you give them because materials to build with are scarce among the tribes. • Although they cannot ask for more supplies, allow them to make trades among each other. • they must ask another group to trade with them • they cannot just steal it from them. • Give students their supplies and give them 10 minutes to discuss how they will build their teepee • Next give them 15 minutes to build. • After they build have them show their teepee to the other tribes and explain why they chose to build it the way they did. (12 minutes) • Ask questions like…. ⁃ What will you do if it rains? ⁃ How will you keep the teepee from blowing over in strong winds? ⁃ Will it be warm enough inside for the people? How will you make it warm enough if you have not already planned for that? • For the rest of the class you can use iPads or computers to research teepee designs and uses and have students talk about what they could do to make their teepees better. Clean up: • Use the last ten minutes to clean up. WEEK 6 Lesson 11- Stomp Rocket (43 minutes) Objective: • To have students experiment with different ways to make objects move. Supplies: • empty plastic bottle with Lid 2 • Straws of varying diameter Tape • Paper/Cardboard/Plastic (optional for decorating) • Glue Gun • Drill and Drill Bit (size of the narrow straw Scissors Instructions: • Have your students split into groups of 3-4 • Drill a hole in the center of the bottle cap (have this done before you have class, you are not able to use drills or drill bits in ESP.) • Put the narrow straw through the hole. (You will want to place the straw mostly in the bottle. If you have a bendy straw, cut the bendy part off before you put the straw in place OR place that part down in the bottle) • Secure the straw to the bottle top with a rim of hot glue around the edge (your students should not be using the hot glue gun they need to come to you when they are ready for this step). This serves two purposes. First, it secures the straw, secondly it keeps the air from escaping through the gap (ask your students why they think they are doing this step, do not just tell them make them think about it and process it). • Take the broader straw and fold the end over a couple of times and secure with tape. This prevents the air from escaping out the end of the straw which allows the air pressure to send the rocket flying (ask your students why they think they are doing this step, do not just tell them make them think about it and process it). • Decorate the broader straw as a rocket if you choose. You could try different shapes to test what shapes are most aerodynamic! (This step is not required but they will highly enjoy it!) • Place the broad straw over the narrow straw • Now it is time to test them!!! (This step would be best done outside if possible) Clean up: • Use the last 10 minutes to have your students clean up their area. Lesson 12- Volcano Explosions (48 minutes) Objective: • Show students the way pressure builds and then explodes because the area in which it is building up in is not big enough and needs to release everything. Supplies: • Baking soda • Vinegar • Food coloring (for fun... this is optional) Instructions: • Make sure all of your students remember their groups and have them separate into their groups and have one person from each group to come get their volcanos from the front of the room (do not let every group come up at one time, call them up by who is following class expectations) • Have 3 students from each group (do not let every group come up at one time, call them up by who is following class expectations) come up to the front and get baking soda, vinegar, and food coloring for their group • Once every group has all the supplies, they need you will want to take to class outside (where there is grass) so that they can watch each groups volcano explode (have one group go at a time, this allows you to pay attention to all of your students and it also makes your students watch the experiment happen multiple times so they can observe more Clean up: • Make sure your students get all of their stuff brought in from outside • Make sure every group grabs their volcano • When you get back to the classroom have one student in every group wipe down their table • Have two students wipe down the table the supplies were on and puts the supplies back in the bucket you brought them in Conclusion: • Ask each group to discuss the different things they observed during all of the explosions • One your students have discussed with their groups have a class discussion • Ask each group to explain how pressure works, and have them explain it to the class WEEK 7 Lesson 13- Penny Changing (40 minutes) Objective: • To understand what different chemicals can do to different materials. Supplies: • old pennies (one penny per student. the older the better) • 3 clear cups • water • dish soap • salt • vinegar (you could also use lemon juice) Instructions: • Split your class into groups of 4-5 • Give each group 3 cups, have one student assigned to each cup (they will be the ones to • fill the cups with the ingredients) • fill the 1st w/plain water, fill the 2nd w/water + dish soap, fill the 3rd w/1/2 cup vinegar • + 2 teaspoons salt • Give each group a penny per student • There needs to be at least one student using each cup, depending on how many students are in a group there may be two students per cup • Have the students dip their pennies halfway in the cup for ten seconds and then take it out and see if there was any change. Have them write all observations down. • After your students have written down their observations have then droptheir pennies in the cup and leave them there for five minutes (during these five minutes have the groups discuss the observations they made from each cup) • Once the five minutes is over, have the students take their pennies out and put them on a paper towel and have them add any additional observations they noticed after this time • Have the students run every penny under sink water (if • • anything changes make sure they add it to their observation sheet) Clean up: • Have students dump all the mixtures out in the sink and throw the cups and paper towels away Make sure you have a student wipe down every table • And make sure there is nothing left on the floor • All extra supplies need to go back in the bucket they came from • All pennies need to go back in the Ziploc baggie Conclusion: Ask each group to share their observations on one of their cups (they can raise their hand to add something for another cup, but they only share their observations for one cup) • Ask them why they think these reactions occurred • Ask if they can tell you something this has happened to (if they know then most likely their answer will be The Statue of Liberty) Lesson 14- Paint Bombs (45 minutes) Objective: • • • • • To better understand what happens during a chemical reaction. Supplies: • • Film canisters (little Rubbermaid containers would work as well) Alka Seltzer tablets • Water-based paint (finger paint works) • Watercolor paper • Butcher paper • Instructions: (20-25 minutes) Have two students from each group come get paint, paper, Alka seltzer, and film canisters • Make sure to cover all of your tables with butcher paper before beginning this experiment • Split your class into groups of five • Pour some paint to a film canister and add half of an Alka Seltzer tablet. Put the lid on • the canister and shake it well Place the paint bomb onto your paper with the lid facing down. Now, you just have to • stand back and wait for it to explode • The Alka Seltzer will mix with the paint and build pressure inside the bottle until it releases. • Once the reaction happens, you can remove the lids and let the paint dry for a fun and unique piece of art Have your students take notes on what they think is happening throughout this process and discuss with their group Clean up: • Have your students clean up all of the extra supplies that are at their table • Make sure they throw away all trash, tables are cleaned off, and floors do not have anything on them • • Have your students throw the butcher paper away and bring their paper to the front of the room Conclusion: • Ask each group to stand up and hold their art to show the class and ask them to share a few of their observations Ask each group if they think there is another chemical, like Alka seltzer, that will do the same thing WEEK 8 Lesson 15- Marble Maze (40 minutes) Objective: • To have students use problem solving skills and creativity together. Supplies: • Shallow box (cardboard box) • Plastic straws • sheet of card • Marbles • Glue • Duct tape • Scissors • Pencil Instructions: • Separate your class into pairs • Have your partners come up and get their supplies • Your students can use the duct tape to line the outside and inside of the walls of the • cardboard box • Have your students cut a piece of paper to fit the bottom of the box • Your students should draw out their design on paper first • Then they are free to create their maze and test their design • The goal for this project is for a marble to travel down the maze using the obstacles the students put in place. Clean up: • Have your students clean up all of the extra supplies at their workspace and put it back in the containers where they came from • Make sure nothing is left on the floor or the tables Conclusion: • Have each group present their maze to the class • Ask how many different ways they tried before they got this maze • Is there anything they would change about theirs now? Lesson 16- Rube Goldberg (45 minutes) Objective: • To have students understand how to use both creativity and problem solving, using a larger scale. Supplies: • Toilet paper rolls • Paper towel rolls • Yarn • Marbles • Paper clips • Pie pans • Spoons • LARGE cardboard box • Empty cereal boxes • Straws • Paper • You may come up with other things you would like your students to be able to choose • from Instructions: • Split your class in half • Allow five students to come up and get supplies they think they would like to begin with • Have each group either design their Rube Goldberg on a whiteboard (if possible) or paper • After they have set a design, they would like to follow they may begin working on their • Rube Goldberg • The goal of this project is the have a marble travel and move different obstacles on a large scale. • Your students should not be limited to only using the marble as the thing that is moving, show them different pictures of Rube Goldberg's to give them ideas. (While your students are working go around the classroom and discuss what each group is doing and comment on how well they are working.) Clean up: • Have your students put all their extra supplies back in the buckets they got them from • Make sure there is nothing on the floor and nothing on the tables • Have your students bring their Rube Goldberg to the front of the classroom Conclusion: • Assign one student from each group be the person that is going to test their groups Rube Goldberg • Both groups should present their Rube Goldberg • Ask the whole class why they used the design they did • Ask your students what some errors in their design were, or if they don’t think they had any errors ask them why they think theirs was without error WEEK 9 Lesson 17- Food Towers (45 minutes) Objective: • To have students create a tower out of nontraditional items and hold the most weight. Supplies: • Marshmallows • Toothpicks • Gummy bears • Straws • Paper cups • Marbles • You may think of other supplies that would be fun to use Instructions: • Split your class into partners • Have one pair to come up at a time and choose three items they would like to use for • their tower • Explain to your students the tower they are building is going to be tested using marbles, • they want their tower to hold the most marbles • Have your students discuss their design with their partner and they may want to sketch • a design to base their towers off of • Once they have discussed their designs they may begin working on the tower • Have your student test their tower along the way and adjust where needed Clean up: • Have your students put all of their extra supplies back in the buckets where they came from • Make sure there is nothing left on the floor or on the tables • Have your students wipe down all of the tables • • Once your students have left you may throw the towers away Conclusion: Test each of your students towers to see whose will hold the most marbles • Have your class discuss why they think the tower, that held the most marbles, held so much • Have each pair discuss what they would change about their design after seeing everyone else's (if you have time) Lesson 18- S'mores Oven (50 minutes) Objective: • To see different ways to heat food without electricity. By creating an oven that will melt the chocolate to create S’mores. Supplies: • Large pizza boxes • A ruler • A black marker • Box cutter • Heavy duty aluminum foil • Glue • Scissors • Clear plastic wrap • Tape • Black construction paper Instructions: • Split your class into groups of 4 • Using the ruler and black marker, draw a square on your pizza box lid leaving a 1-inch • border on each side of the pizza box. • Using the box cutter cut out, cut 3 sides of the square you just drew, leaving the line at • the rear of the box attached. • Fold the flap back so it stands up when the pizza box lid is attached. • Using the glue as an adhesive, cover the underside of the flap with heavy duty • aluminum foil. Smooth out wrinkles and cut off any excess. • With the scissors cut 2 squares of plastic wrap, both bigger than the size of the pizza box • flap opening. • Tape one of the squares over the hole, fastening the plastic wrap to the underside of the pizza box. • • • • • Close the lid and take the second plastic sheet and cover the pizza box hold on the other side of the pizza box top. Creating a window to help keep the suns heat in the box. • Pull both sheets tight as you tape them. Glue or tape a layer of aluminum foil to the inside of the pizza box for insulation. • Cover the foil layer in the box with sheets of black construction paper and glue them into place. • Close your lid and you are ready to start cooking • Adjust the foil flap to find the best ray reflecting angle. Use the ruler, a straw or stick to keep the flap strapped into place. Preheat your oven by leaving outside for 30 minutes • Time to cook your s'mores (While your students are working walk around and ask them questions, comment on their work, ask if they need help.) Clean up: Have your students put all of their extra materials back where they got them from. • Make sure your students throw all of their trash away. • Make sure your students do not leave anything outside Conclusion: • While your student's ovens preheat discuss with them why they think this works, or if they do not think this works ask them why. Ask your students if they think there is a better design for this experiment.