Elementary
Essential Lab
Web This
Science Capacity Development & School Reform Accountability
Agenda
• Lab Norms
• Bellringer
• Sunshine State Standard
• Engage - BrainPOP
• Explain – Background Knowledge
• Explore - Lab
• Elaborate
• Evaluate
• Gizmo
Lab Norms
1. Be responsible.
2. Follow ALL instructions carefully.
3. Please avoid touching any equipment,
chemicals, or other materials in the laboratory
area until you are instructed to do so.
4. Avoid eating food, drinking beverages, or
chewing gum in the laboratory.
5. Dress properly during a laboratory activity :
safety goggles, lab coats, long hair tied back,
no sandals, no dangling jewelry.
Web This
Florida Sunshine State Standard Benchmark:
SC.B.1.2.1
The student knows how to trace the flow of energy in a
system (e.g., as in an ecosystem).
Additional Florida Sunshine State Standard
Benchmarks:
• 1. knows that most living things use energy from the
Sun to live and grow (to be covered in grade 4)
Teacher Background: FCAT Lessons
Learned
• Instruction should focus on relationships within a
system to emphasize that the parts of the system are
connected to each other and to the whole (e.g., energy
transfers in food chains and food webs).
• Teachers must focus on whole systems so that students
can explain the entire system starting at any given
point within that system.
• Sun – Producers – Consumers.
• Instruction should provide students with opportunities
to manipulate objects and then explain, using words
and diagrams.
Bellringer
What is the primary role of the rabbit in this food chain?
A. To form a habitat
B. To provide a space to live
C. To be a source of water
D. To be a source of energy
ENGAGE
http://www.brainpop.com/science/
ecologyandbehavior/foodchains/
EXPLAIN: Background Knowledge
• All living things need food to give them the energy to
grow and move.
• The sun provides energy to plants so that they can
make their own food.
• Plants are called producers. They make (produce)
their own food by a process called photosynthesis.
• Animals cannot make their own food. Animals get their
energy by consuming (eating) other organisms.
• Animals are consumers. They eat (consume) food.
They do not make their own food.
• Decomposers feed on the remains or wastes of other
organisms such as bacteria and fungi.
Three Types of Consumers
• Herbivores are plant eaters.
• Carnivores are meat eaters.
• Omnivores eat both plants and animals.
All Living Things Need Food to
Give Them Energy
• A food chain shows how each living thing gets
its food.
• It shows who is eating who.
The arrow means "is eaten by" .
Food Webs
• A food web consists of many food chains.
• A food chain only follows one path as animals find
food.
Ex.: Grass is eaten by a grasshopper. A frog eats the
grasshopper. A snake eats the frog. A hawk eats the
snake.
• A food web shows the many different paths plants and
animals are connected.
Ex.: A hawk might also eat a mouse, a squirrel, a frog or
some other animal. The snake may eat a beetle, a
caterpillar, or some other animal. And so on for all the
other animals in the food chain.
• A food web is several food chains connected together.
Team Jobs
Team Jobs
Objective:
I can trace the flow of energy in a food web.
Purpose:
• To provide students opportunities to manipulate
objects and then explain food webs, using words
and diagrams.
Materials:
• Materials:
• food web diagram cut outs
• scissors
• glue stick (optional)
• Construction paper (optional)
Hypothesis
(write in your own as an IF…..THEN…. statement)
• If ________________, then______.
EXPLORE: Procedures
• Cut out the plants, animals, and arrows along the
dotted lines.
• Now you are going to build your own food web. Start
with the ant. Place an arrow from the ant to another
organism that eats the ant. If you find more than one
organism that eats ants, add another arrow coming
from the ant going to that organism.
• Do the same with the beetle. If an organism that eats
ants also eats beetles, then add an arrow from the
beetle to that organism.
• Do the same for the remaining organisms. Keep in
mind that the ants and beetles eat things as well and
those things will need to be added and connected with
arrows.
Guiding Questions
1. How does the ant receive the energy
it needs for survival?
2. What would happen to this food web
if the plants were all gone?
3. Which animal would be the predator
in this food web?
4. Describe the producers in the food
web.
Elaborate
http://www.explorelearning.com/index.cfm?method=cResource.dsp
View&ResourceID=639
EVALUATE
In North Carolina, fishing industries are killing an
abundant amount of sharks. Sharks eat cow rays
and cow rays eat scallops. The scallops also feed
on the grass beds at the shore line. What do you
think will happen to this food web if the sharks die
out?
If the sharks die out, then there will not be a main
predator for the cow rays. The cow rays will
increase in population. This will result in more
cow rays feeding on the scallops. If the cow ray
population increases and the scallop population
remains the same, then there will be more cow
rays eating the scallops. The scallop population
will decrease at a faster rate.
Evaluate #2
Extension Activities
• Food Chains Interactive Web site
www.crickweb.co.uk/assets/resources/flash.php?&file
=foodchains
• Food Chain Quiz
http://www.zephyrus.co.uk/foodpuzzlechain.html
• Create A Food Web – Advanced Learners
http://www.zephyrus.co.uk/foodpuzzlechain.html
• Additional Resources
http://www.woodlandsjunior.kent.sch.uk/Homework/fooodchains.htm#webs
• DE Streaming: You in the Food Web
Science Capacity Development Team
Cristian Carranza, Science Manager
cristian.carranza@palmbeach.k12.fl.us
Shari Bremekamp
William Rizzo
bremekamp@palmbeach.k12.fl.us
rizzow@palmbeach.k12.fl.us
Crystal Clark
Adrian Seepersaud
clarkcr@palmbeach.k12.fl.us
seepersaud@palmbeach.k12.fl.us
Annmarie Dilbert
Amie Souder
dilbert@palmbeach.k12.fl.us
souder@palmbeach.k12.fl.us
Christel Leahy
Heather Trapani
christel.leahy@palmbeach.k12.fl.us
trapanih@palmbeach.k12.fl.us
Terrence Narinesingh
Robera Walker
narinesingh@palmbeach.k12.fl.us
robera.walker@palmbeach.k12.fl.us
Kirk Nieveen
Paul Wojciechowsky
kirk.nieveen@palmbeach.k12.fl.us
wojciep@palmbeach.k12.fl.us
Andrea Reilly
reilly@palmbeach.k12.fl.us