Biology (Life Science)
Chemistry (Matter and Reactions)
Physics (Forces and Energy)
Earth and Space Science
General Science
100
  • What is the basic unit of life? 

The Cell or DNA

100

What gas do plants absorb from the atmosphere?

Carbon Dioxide

100

What force keeps us on the ground?

Gravity

100

What is the closest star to Earth?

Sun

100

What is the fastest land animal?

Cheetah

200

What is the largest internal organ in the human body?

Liver

200

Anything that has mass and takes up space.

Matter

200

Stored Energy

Potential Energy

200

What is the name of our galaxy?

Milky Way

200

What is the largest mammal in the world?

Blue Whale

300

How many chambers are in the human heart?

4

300

The smallest unit of an element.

Atom

300

Energy of motion

Kinetic Energy

300

What is the largest planet in our solar system?

Jupiter

300

How many bones are in the human body?

206

400

What is the process by which plants make their own food?

Photosynthesis
400

What is the hardest natural substance on Earth?

Diamond

400

What are the three primary states of matter?

Solid, Liquid, Gas
400

What planet is known as the "Red Planet"?

Mars

400

What is the scientific term for the fear of spiders?

Arachnophobia

500

What is the largest organ on or in the human body?

Skin

500

Chemical Formula for water. 

H2O

500

A force is a ________ or a __________.

Push or pull

500

What causes tides on Earth?

The gravitational pull of the moon.

500

Beyond oxygen, what is the main gas in the Earth's atmosphere?

Nitrogen

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