7th Grade Environmental Science Quiz
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7th Grade Environmental Science Quiz
Read: A Change at Willow Pond
Willow Pond is home to algae, aquatic plants, insects, small fish, frogs, and herons. Algae and plants use sunlight to make food. Insects eat algae and plants; small fish eat insects; frogs eat insects and small fish; and herons eat fish and frogs. After a week of unusually warm weather, algae grew quickly and covered much of the pond’s surface. Less sunlight reached the underwater plants. When large amounts of algae later died, decomposers such as bacteria broke them down and used oxygen in the water. A nearby community is studying the pond and planning ways to protect it.
- Heron
- Algae
- Small fish
- Frog
- Small fish may have less food.
- Herons will have more algae to eat.
- Plants will stop needing sunlight.
- Decomposers will disappear immediately.
- Producer
- Consumer
- Decomposer
- Habitat
- Gets energy by eating other organisms
- The place where an organism lives
- Makes its own food, often using sunlight
- Breaks down dead organisms and waste
- All the living things in a pond
- All the frogs of one species living in a pond
- The pond water, rocks, plants, and animals
- One frog and the insect it eats
- The variety of living organisms in an area
- The number of nonliving objects in an area
- The amount of sunlight an ecosystem receives
- The path energy takes through one food chain
2 printable pages
Page 1
Page 2
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