Ecosystem Basics
Plants and Animals
Food Chains
Habitats Around the World
Protecting Ecosystems
100

An ecosystem is made up of these two main things: living and ________ things.

What are nonliving?

100

This green plant part helps plants make their own food.

What is a leaf?

100

This is the source of energy for all food chains.

What is the Sun?

100

This ecosystem is hot and dry, with very little rain, and is home to cacti and camels.

What is a desert?

100

Picking up trash and recycling are ways to help protect this.

What is the enviroment?

200

The living parts of an ecosystem, like plants and animals, are called ________.

What are biotic factors?

200

Animals that eat only plants are called this.

What are herbivores?

200

This term describes animals that hunt other animals for food.

What are predators?

200

This cold ecosystem is covered in ice and snow and is home to polar bears and penguins.

What is the Arctic?

200

Cutting down too many trees can harm forests. This is called ________.

What is deforestation?

300

Nonliving parts of an ecosystem, like sunlight and water, are called ________.

What are abiotic factors?
300

This word describes animals like lions that eat only other animals.

What are carnivores?

300

These organisms break down dead plants and animals and return nutrients to the soil.

What are decomposers?

300

This habitat is warm and rainy all year and has many trees and animals like monkeys and parrots.

What is a rainforest?

300

This is the term for protecting animals and plants from being harmed.

What is conservation?

400

This is the name for a group of the same type of animals living together in an ecosystem.

What is a population?

400

These animals eat both plants and other animals.

What are omnivores?

400

This is the name for an animal that is eaten by another animal.

What is prey?

400

A grassy ecosystem with few trees, found in Africa, where lions and zebras live.

What is a savanna?

400

A species that is at risk of disappearing forever is called this.

What is endangered?

500

All the different plants and animals living together in one place make up this.

What is a community?

500

The process of animals moving from one place to another during certain times of the year.

What is migration?

500

A food chain shows how this moves through an ecosystem.

What is energy?

500

This wet habitat is found where rivers meet the ocean and is home to animals like crabs and fish.

What is an estuary?

500

Planting new trees to replace ones that were cut down is called ________.

What is reforestation?