Name: __________________ Mrs. Schroeder, Mr. Kirby Date: _____Period: _____ Science 7 Grade:___/40 M&M Experiment Pre-Activity Questions: Define in your own words “Solute”: ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ Example of a “Solute”: ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ Define in your own words “Solvent”: ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ Example of a “Solvent”: ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ Define in your own words “Solubility”: ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ Example of “Solubility”: ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ Experiment: Problem: How will temperature or the type of solvent change the solubility of an M&M? Circle the one you are testing: TEMPERATURE or TYPE OF SOLVENT If you are testing ‘temperature’ use hot tap water. If you are testing ‘type of solvent’ use vinegar. Make a prediction (like homework last night) I will be setting up an experiment to see how _____________ affects the solubility of the candy shell on an M&M. I predict that changing the _____________ will affect the M&M shell by causing it to wear away __________ compared to the one in regular water. Making a hypothesis based on a prediction: In science we make a hypothesis based on what we think will happen along with what we know about the topic. I think that the M&M in ______________________________________ will_____________________________________________________because ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ _____________________________________________________________. Procedure: 1. Place one M&M in room temperature water and one M&M in what you are testing from above (temperature or type of solvent) 2. Make observations that include how the outside of the M&M looks like every 30 seconds for five minutes. Write your observation in the table below. Time in seconds 30 60 90 120 150 180 210 240 270 300 Observation of M&M in room temperature water Observation of M&M in __________________ 3. Drawings Your Control Group – Room temperature water and Your Experimental Group – ________________ and M&M M&M Conclusions: What happened? Use details! ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ Were your correct in your prediction? Explain why or why not. ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ Post-Activity Questions: Remember to use complete sentences and details. 1. How does temperature affect solubility? Need to talk about thermal energy and particles in your answer. ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ 2. Identify the solute(s) and solvent in each solution. Underline the solute and circle the solvents. a. Ocean Water: Salt and Water b. Antifreeze: Water and ethylene glycol c. Soda Pop: syrup, water and CO2 gas d. Kool-Aid: powder, sugar and water e. Lemonade: water, lemon juice, and sugar 3.Why would a candy shell barely dissolve in the sugar solution? Need to talk about particles, what a solution is (including solute and solvent). ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ 4.Which would have the most SOLUTE: a glass of very sweet Kool-Aid or a glass of barely sweet Kool-Aid? Give a reason for your answer. ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ 5.Mrs. Schroeder’s children always complain that the Kool-Aid that she makes is not sweet enough. Explain how she can make it sweeter using the words solute, solvent, solution, and concentration. ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ 6.Mrs. Schroeder makes the Kool-Aid sweeter for her children, but after she is done she notices that the sugar is just collecting on the bottom of the container. Explain what she has done using the words solute, solvent, solution, concentration, and saturation. ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ Section: Pre-Activity Questions Experiment Post Activity Questions ELA (both) Excellent Excellent all around job in the questions. Highest levels of effort shown in the details of definitions and examples. Good Definitions and examples show clear effort and are thoughtful. Further details, such more detailed examples are needed. Fair Definitions and examples show basic information has been gathered, but not much else is recorded. Much more could be generated. Needs Work Missing large amounts of detail for the time given to complete this section. Need to put in more effort, or ask your teacher for help if the directions are not understood. 10 Excellent all around job in predictions, hypothesis, observations, data collection, drawings, and conclusions. Highest levels of effort shown in the details of your data collections/drawings quality of your conclusions. 10 8 Observations and data collection show clear effort and conclusions are thoughtful. Further details needed. Good all-around job. 7 Observations and data collection show basic information has been gathered, but not much else is recorded. Much more detailed observation, drawings and conclusions. 4 Missing large amounts of detail for the time given to complete this section. Need to put in more effort, or ask your teacher for help if the directions are not understood. All questions answered with a lot of detail, with answers supported with examples. All questions answered with some detail and supported with examples. All questions answered to the most basic level. Answers were lacking detail and/ or support. 15 Activity meets all ELA requirements for handed in work. 12 Activity generally meets all requirements for handed in work, with some minor problems with conventions. 4 10 Activity had more than minor conventions issues. 6 Activities had major issues with conventions. 5 8 7 4 3 <3