Understanding Ecosystems and Cycles

What are algae?

• Tiny living things in water that produce their own food, like plants do

• A type of gas that plants sometimes take in

• A living thing that eats other living things

• An organism that is usually a decomposer

What is the atmosphere?

• A living thing that can break down dead living things

• The air that surrounds a planet

• An important material that exists in the air, soil, and all living things on Earth

• A pretend version of something that scientists use

What is bacteria?

• A living thing that is a producer and has spores

• An organism that is usually a decomposer; some cause illness

• A type of gas that plants sometimes take in

• A set of events that repeats in the same order over and over

What is carbon?

• A living thing that eats other living things

• An important material that exists in the air, soil, and all living things on Earth

• A living thing that can break down dead living things

• The air that surrounds a planet

What is the carbon cycle?

• The process of carbon moving through living things and the environment

• Water evaporating, condensating, and precipitating.

• A living thing that is a decomposer and has spores

• A pretend version of something that scientists use

What is carbon dioxide?

• A living thing that eats other living things

• A type of gas that plants take in and that animals release when they breathe

• An animal that consumes other animals.

• A living thing that can break down dead living things

What is a consumer?

• A living thing that eats other living things

• A living thing that is a decomposer and has spores

• An organism that is usually a decomposer; some cause illness

• A pretend version of something that scientists use

What is a food chain?

• A living thing that can break down dead living things

• A set of events that repeats in the same order over and over

• How living things are connected by what they eat and what they are eaten by

• An important material that exists in the air, soil, and all living things on Earth

What is a decomposer?

• A living thing that can break down dead living things

• A type of gas that plants sometimes take in

• A living thing that eats other living things

• An important material that exists in the air, soil, and all living things on Earth

What is an ecosystem?

• All the living things that interact with each other and their environment in one place

• A living thing that is a decomposer and has spores

• A pretend version of something that scientists use

• A set of events that repeats in the same order over and over