Earth & Nature
Space
The Human Body
Other Science
STEM Challenge
100

This star gives Earth light and heat.

The sun.

100

What is the 3rd planet from the sun?

Earth

100

What do you use to breathe?

Lungs.

100

Does a rock float or sink?

Sink.

100

What gives us light during the day?

The Sun.

200

What season comes after spring?

Summer

200

What orbits around the Earth?

The Moon.

200

What are our 5 senses that help us understand the world.

Sight, hearing, smell, taste, touch.

200

If you freeze water, what does it become?

Ice.

200

Would you rather build a bridge out of paper or spaghetti? Explain.

Good explanation

300

Plants need sunlight, water, and ____ gas to grow.

Carbon Dioxide

300

What is the hottest planet?

Venus.

300

What bone protects your brain?

The Skull.

300

Name the 3 states of matter.

Solid, Liquid, Gas

300
What would happen if gravity disappeared?

We'd float/ things would fly away.

400

What is the process called when water changes to gas?

Evaportation
400

What do astronauts use to reach space?

A rocket.

400
What is the largest organ of our body?

The skin.

400

What is more dense, a rock or a sponge?

Rock

400

Name something an engineer might build.

Bridge, house, car, robot, road.

500

Name one way people can help protect the Earth.

Recycling, Picking up litter, Saving Water, Planting trees.

500

What is the name of the huge group of stars that includes our solar system? (Galaxy)

The Milky Way

500

Why do we need to eat healthy foods? 

Gives more energy, Helps us grow, keeps us healthy.

500

What is matter?

Anything that takes up space and has mass (everything around us)

500

If you could invent one thing to help people, what would it do? Explain.

Good explanation.