Earth & Space
Living Things
Matter
Science Skills
Human Body
100

This planet is where we live. 

What is Earth?

100
A living thing is called this.

What is an organism?

100

Ice is this state of matter.

What is a solid?

100

Scientists use their eyes, ears, nose, and other senses to make these. 

What are observations?

100

This organ pumps blood through your body.

What is the heart?

200

This star gives Earth light and heat.

What is the Sun?

200

Plants need sunlight, water, and this GAS to make food. 

What is carbon dioxide?

200

Water that you drink is this state of matter.

What is a liquid?

200

A good scientific guess about what will happen is called this.

What is a hypothesis?

200

These organs help you breathe.

What are the lungs?

300

This object travels around the Earth.

What is the Moon?

300

Animals that only eat plants are called this.

What are herbivores?

300
Water vapor is this state of matter. 

What is a gas?

300

Scientists use this tool to measure temperature.

What is a thermometer?

300

This organ controls your thoughts and movements.

What is the brain?

400

Earth takes about 365 days to travel around this.

What is the Sun?

400

This body part helps fish breathe underwater.

What are gills?

400

When a solid turns into a liquid, it is doing this. 

What is melting?

400

Information collected during an experiment is called this.

What is data?

400

These hard structures help support and protect your body.

What are bones?

500

This force pulls objects toward Earth.

What is gravity?

500

This is the smallest basic part of a living thing.

What is a cell?

500

Anything that takes up space and has mass is called this.

What is matter?

500

At the end of an experiment, scientists use their results to make this.

What is a conclusion?

500

This system breaks down the food you eat.

What is the digestive system?