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Why do you have to clean a fish tank but not a pond?

Total questions: 19

Worksheet time: 10mins

Name
Class
Date
1.

What are tiny living things in water that produce their own food, like plants do?

a)

Bacteria

b)

Algae

c)

Fungus

d)

Consumer

2.

What is the air that surrounds a planet called?

a)

Ecosystem

b)

Carbon cycle

c)

Atmosphere

d)

Matter

3.

Which organism is usually a decomposer and can sometimes cause illness?

a)

Algae

b)

Bacteria

c)

Consumer

d)

Model

4.

What is an important material that exists in the air, soil, and all living things on Earth?

a)

Carbon

b)

Fungus

c)

Cycle

d)

Model

5.

What is the process of carbon moving through living things and the environment called?

a)

Atmosphere

b)

Carbon cycle

c)

Ecosystem

d)

Matter

6.

What type of gas do plants sometimes take in and animals release when they breathe?

a)

Oxygen

b)

Nitrogen

c)

Carbon dioxide

d)

Hydrogen

7.

What do you call a living thing that eats other living things?

a)

Decomposer

b)

Consumer

c)

Fungus

d)

Model

8.

What is a set of events that repeats in the same order over and over?

a)

Cycle

b)

Ecosystem

c)

Matter

d)

Atmosphere

9.

What is a living thing that can break down dead living things?

a)

Consumer

b)

Decomposer

c)

Algae

d)

Model

10.

What term describes all the living things that interact with each other and their environment in one place?

a)

Atmosphere

b)

Ecosystem

c)

Cycle

d)

Matter

11.

What is a living thing that is a decomposer and has spores, such as a mold or mushroom?

a)

Algae

b)

Fungus

c)

Consumer

d)

Model

12.

What is anything that takes up space and can be in different forms such as solid, liquid, or gas?

a)

Matter

b)

Carbon

c)

Atmosphere

d)

Cycle

13.

What is a pretend version of something that scientists use when the real thing is too big, small, or complicated to work with?

a)

Model

b)

Decomposer

c)

Consumer

d)

Ecosystem

14.

What is a nutrient?

a)

A living thing that makes its own food

b)

A type of gas that animals use to breathe

c)

A substance that living things need to grow and stay healthy

d)

Tiny, floating living things in water

15.

What is an organism?

a)

A group of things that affect each other

b)

Any living thing

c)

A type of gas that animals use to breathe

d)

A living thing that makes its own food

16.

What is oxygen?

a)

A living thing that makes its own food

b)

A type of gas that animals use to breathe and that plants release

c)

Tiny, floating living things in water

d)

A group of things that affect each other

17.

What are phytoplankton?

a)

A living thing that makes its own food

b)

Tiny, floating living things in water that are smaller than algae and produce their own food

c)

A type of gas that animals use to breathe

d)

A group of things that affect each other

18.

What is a producer?

a)

A living thing that makes its own food

b)

A type of gas that animals use to breathe

c)

Tiny, floating living things in water

d)

A group of things that affect each other

19.

What is a system?

a)

A living thing that makes its own food

b)

A type of gas that animals use to breathe

c)

A group of things that affect each other and function as a whole

d)

Tiny, floating living things in water