Every food chain in a meadow begins with grass and other plants. Where does the energy that these plants use to grow first come from?

A food chain is written grass -> rabbit -> fox. What does the arrow between grass and rabbit tell you?

A pond food chain is written algae -> tadpole -> dragonfly larva -> bass. Which living thing in this chain uses sunlight to make the food that starts the chain?

A meadow food chain is written grass -> vole -> hawk. When the hawk dies, mushrooms and bacteria break its body down. What happens to the nutrients in the hawk's body?

In an orchard food chain apple leaves -> caterpillar -> wren, a spray kills nearly all of the caterpillars. What will most likely happen to the apple leaves?

A stream food web shows berries -> raccoon, crayfish -> raccoon, and raccoon -> coyote. What does this web tell you about the raccoon?

Scientists studying a forest usually draw a food web instead of a single food chain. Why does a food web describe the real forest better?

Energy flows one way through a food chain, so a fox does not pass energy back to the grass.

A disease kills nearly all of the rabbits in a meadow where foxes eat mostly rabbits. What will most likely happen to the fox population?

Hawks hunt the mice in a grassland. If the hawks all move away, what will most likely happen to the mouse population at first?

In the food chain leaf -> caterpillar -> bird -> hawk, which living thing gets its energy directly from the caterpillar?

A grassland food web shows grass -> mouse -> hawk and also grass -> rabbit -> hawk. What does this web show about the hawk?

A meadow food web shows clover -> rabbit -> fox and also clover -> vole -> fox. Which living thing in this web is eaten by both the rabbit and the vole?

Removing one animal from a food web can affect other living things both above and below it in the web.

A pond food chain is written duckweed -> mosquito larva -> minnow -> heron. Which living thing does the minnow get its energy directly from?

A garden food web shows seeds -> sparrow, caterpillar -> sparrow, and sparrow -> hawk. If a spray kills all the caterpillars, why can the sparrows most likely still survive?

In the food chain grass → grasshopper → frog, what does the arrow from grass to grasshopper show?

In a garden, roses feed aphids and aphids feed ladybugs: roses -> aphids -> ladybugs. A cold snap kills nearly all the ladybugs. What will most likely happen to the roses?

A woodland food chain is written acorns -> squirrel -> owl. A drought means far fewer acorns grow that year. What will most likely happen to the owls over time?

A forest food web shows nuts -> squirrel, seeds -> squirrel, mice -> owl, and squirrel -> owl. How does energy stored in the nuts get to the owl?