Food Webs and Energy Flow
Grade 5 Science Worksheet - Building Confidence

Circle the answer.
Read this first
A Pond Food Web
Algae grow in the sunny water. Tadpoles and snails eat the algae. A bass eats the tadpoles, and a turtle eats the snails. When living things in the pond die, bacteria break them down.
Which organism is the producer?
- turtle
- bass
- tadpole
- algae
What does the bass eat?
- algae
- snails
- tadpoles
- turtles
Which organism is a decomposer?
- bass
- tadpoles
- bacteria
- algae
Which organism eats the snails?
- algae
- tadpole
- turtle
- bass
Where does the energy in the pond food web come from first?
- the soil
- the Sun
- the water
- the air
Which food chain shows how the energy moves?
- algae → tadpole → bass
- bass → tadpole → algae
- tadpole → algae → bass
What would most likely happen if all the tadpoles disappeared?
- the bacteria would take over the pond
- the turtles would starve at once
- the bass would have less to eat
- the algae would stop growing
What do bacteria do in the pond?
- hunt the smaller animals
- break down dead plants and animals
- make food from sunlight
- eat only living plants


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