Vocabulary 1
A group of animals and plants that live in the same place and how they act together.
Ecosystem
Not enough water.
Drought
A large stream of water.
River
How high or low something is.
Level
A series of animals and plants where each one feeds on the one below it.
Food Chain
Things you can use.
Resources
Something bad.
Negative
Rivers, trees, and animals.
Nature
Something good.
Positive
A contest.
Competition