Energy & Food
Earth's Systems
Our Solar System
Physical Science
Ecosystems
100

Plants use light from the sun to make food through this process.

What is photosynthesis?

100

This sphere includes all the water on Earth like lakes, oceans, and rivers.

What is the hydrosphere?

100

This planet is the most distant from the sun and is the coldest planet in our solar system.

What is Neptune?

100

This type of transformation results in a new substance being formed, like when wood burns.

What is a chemical change?

100
This is a living thing that eats plants and/or animals to stay alive and get energy.

What is a consumer?

200

This ecological arrangement represents the transfer of energy though different organisms, from producers to consumers. 

What are food chains?

200

This type of rock, beneath Earth's outer layer, can erupt from volcanoes.

What is magma?

200

This planet is known as the red planet. It is the 4th planet from the sun.

What is Mars?

200

This process happens when liquid converts into gas, often seen in a water puddle on a sunny day.

What is evaporation?

200

This organism makes its own energy through photosynthesis.

What are producers?

300

This criss-cross network displays how energy flows through an environment by illustrating relationships among creatures.

What are food webs?

300

This is an invisible layer of gases that surrounds Earth, protecting us from harmful space radiation. 

What is the atmosphere?

300

This separates the inner and outer planets. It is made up of chunks of rock.

What is the asteroid belt?

300

This property decides how much of a substance dissolves in a liquid like a bit of sugar in water.

What is solubility?

300

This is an organism, commonly a fungi or bacteria, that breaks down dead organisms. It also returns important nutrients into the soil.

What is a decomposer?

400

This Ms. Short phrase demonstrates how energy is passed on in the direction of movement in a food web or food chain.

What is "Where the arrow goes, the energy flows!"?

400

Rain falls on plants which causes them to grow. Which spheres interact in this relationship?

What are the biosphere and hydrosphere?

400

This planet is named after the Roman Goddess of love and is the hottest planet in our solar system.

What is Venus?

400
This is a physical substance that everything is made of. It takes up space in our universe and has mass.

What is matter?

400

These tiny organisms are so small they can only be seen with a microscope.

What are microbes?