Grade 4 Quiz

Which food chain is in the correct order?

• grasshopper → grass → snake → frog → hawk

• grasshopper → frog → hawk → snake → grass

• grass → grasshopper → frog → snake → hawk

• grass → grasshopper → snake → frog → hawk

How have desert plants adapted to their environment?

• by limiting the use of sunlight

• by storing water

• by distributing certain nutrients

• by releasing water

This diagram represents a food web. What role is the owl in the food web?

• consumer

• decomposer

• herbivore

• producer

Why can frogs and snakes live in the same garden?

• Both keep weeds out of the garden.

• Both help different plants to grow

• Both occupy different niches.

• Both compete for water.

What prevents plant growth beneath the trees in thick forests?

• The trees limit the amount of sunlight that is able to reach the ground.

• The roots of the trees make it difficult for plants to grow.

• Little water reaches the ground under the trees.

• The temperature of the soil under the trees does not allow plants to grow.

Which is the best example of habitat reduction caused by humans?

• Birds and animals flee a forest fire caused by lightning

• Birds become sick from eating insects new to their area.

• Fish swimming to breeding grounds are blocked by dams.

• A new species of fish migrates up a river, competing with native fish for food.

How is a delta most likely formed?

• irrigation

• glacier movement

• precipitation and condensation

• deposition of sediment

Which human activity will most likely increase the amount of soil erosion?

• growing crops

• mowing grass

• planting flowers

• clear-cutting wooded areas

All of the landforms on Earth are constantly changing shape. What is most responsible for the changes in the landforms?

• earthquakes

• water erosion

• pollution

• oceans

How does water help to break apart rock?

• by freezing and expanding

• by melting and contracting

• by condensing and expanding

• by evaporating and contracting