Earth's Spheres
Ecosystems
Space
Matter
4th Grade
100

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

What is the hydrosphere?

100

These organisms make their own food using sunlight, like plants do.

What are producers?

100

This star is at the center of our solar system and provides light and heat to Earth.

What is the sun?

100

This state of matter has a definite shape and volume.

What is a solid?

100

This is the energy of motion, like a rolling ball or a moving car.

What is kinetic energy?

200

This sphere includes all living organisms, including plants, animals, and humans.

What is the biosphere?

200

These organisms cannot make their own food and must eat other organisms to get energy.

What are consumers?

200

This force pulls objects toward each other and keeps planets orbiting the Sun.

What is gravity?

200

This state of matter takes the shape of its container but has a fixed volume.

What is water?

200

This type of energy travels in waves and can move through empty space from the Sun to Earth.

What is light energy?

300

This sphere is made up of gases surrounding Earth and is where weather happens.

What is the atmosphere?

300

These organisms break down dead plants and animals, returning nutrients to the soil.

What are decomposers?

300

This is the tendency of an object to stay at rest or keep moving unless acted on by a force.

What is inertia?

300

This state of matter has no fixed shape or volume and spreads out to fill any space

What is a gas?

300

This process breaks down rocks into smaller pieces over time.

What is weathering?

400

This sphere includes rocks, soil, mountains, and Earth’s crust.

What is the geosphere?

400

This type of consumer eats only plants and is often the first consumer in a food chain.

What is an herbivore?

400

This pattern formed by groups of stars often looks like shapes or animals in the night sky.

What is a constellation?

400

This type of change alters the form of a substance but does not create a new substance.

What is a physical change?

400

This type of rock is formed when layers of sediment are pressed and cemented together over time.

What are sedimentary rocks?

500

When plants use carbon dioxide from the air to make food, this shows interaction between these two spheres.

What is the biosphere and the atmosphere?

500

This organism eats both plants and animals and can be found at different levels in a food chain.

What is an omnivore?

500

The sun contains approximately what percent of mass for the entire solar system?

What is 99%?

500

This type of change creates a new substance.

What is a chemical change?

500

This type of rock forms from cooled and hardened lava or magma.

What is igneous rock?

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