Objective: KWBAT explain how food moves through an ecosystem.
1
Question 1
1.
Herbivores eat ________________
1
Question 2
2.
Carnivores eat ________________
1
Question 3
3.
Omnivores eat ________________
1
Question 4
4.
Decomposers eat ________________
Question 5
5.
There is a snake, grass, and mouse in an ecosystem.
Describe how each organism in this ecosystem must get its energy (1 point each):
Snake - How does the snake get energy? _______
Mouse - How do the mouse get energy? _______
Grass - How does the grass get energy? _______
Question 6
6.
Write a food chain with the organisms snake, grass, and mouse to correctly show the energy relationships (3 points).
Criteria For Success:
organisms are in the correct order
arrows correctly show the flow of energy
all three organisms are included in the food chain
Question 7
7.
When the snake eats the mouse, what 2 things does the snake use the food molecules for?
1. _______
2. _______
Question 8
8.
The snake does not eat grass.
Explain how the molecules from the grass can become the body molecules of the snake.
Criteria For Success:
Describe the food chain.
Explain how the food molecules move in the food chain.
Question 9
9.
A grasshopper was introduced into the ecosystem. The grasshopper is an herbivore. What will happen to the size of the snake population, increase, decrease, or stay the same. Explain why.
The snake population will _______ because ______
Question 10
10.
Fill out the boxes to create a food chain from the food web above: