Human Body
Earth & Space
Random Science
Matter & Energy
Living Things
100

What part of your body controls everything you do, think, and feel?

Brain

100

What do we call a group of stars that form a pattern in the sky?

Constellation

100

What planet is known as the Red Planet?

Mars

100

What are the three states of matter?

Solid, liquid, gas

100

What is the process called when plants make their own food?

Photosynthesis

200

Which system helps you breathe?

Respiratory system 

200

What is the force that keeps us on the ground?

Gravity

200

What is the smallest unit of life?

Cell

200

What tool do scientists use to measure temperature?

Thermometer

200

What do we call animals that only eat plants?

Herbivores

300

What type of joint is in your shoulder that allows it to move in many directions?

Ball-and-socket joint

300

What causes day and night on Earth?

Earth’s rotation on its axis

300

What is H₂O better known as?

Water

300

What happens when water changes from liquid to gas?

Evaporation

300

What part of the plant takes in water and nutrients from the soil?

Roots

400

What are the small air sacs in your lungs called where gas exchange happens?

Alveoli

400

What are the three main layers of the Earth?

Crust, mantle, core

400

What is the center of an atom called?

Nucleus

400

What kind of energy does the Sun give us?

Light and heat energy

400

What is a community of living and non-living things interacting called?

Ecosystem