Weather & Water Cycle
Matter & Energy
Forces & Motion
Earth & Space
Ecosystems & Life
100

What is the major source of energy that powers the water cycle?

The Sun

100

Three common states of matter 

solid liquid gas

100

This is the scientific word for a push or a pull.

force

100

It takes this exact amount of time for Earth to make one complete revolution around the sun.

365 days

100

Animals that must eat other plants or animals for energy are called what?

consumers

200

what is the process when liquid water changes into a gas called water vapor?

Evaporation

200

What property of matter is measured using a balance or scale?

mass

200

The invisible force that pulls objects down toward the center of the Earth.

Gravity

200

The group of four rocky planets closest to the sun

Mercury Venus Earth and Mars

200

When an animal blends into its background to hide from predators, it is using what strategy?

camouflage

300

what is the step where water vapor turns back into liquid water to form clouds?

Condensation

300

What do you call a combination of two or more substances where each keeps its own physical properties?

A mixture

300

To calculate speed, you divide the distance traveled by?

Time

300

These remains or traces of ancient plants and animals are found trapped in sedimentary rock.

Fossils

300

If an owl eats a mouse that ate grass, the owl is known as what level consumer?

secondary consumer

400

Which tool measures how hot or cold the air is?

A thermometer

400

True or False: All solutions are mixtures, but not all mixtures are solutions.

True

400

The force that works against or slows down motion when two surfaces touch each other

Friction

400

Without this specific feature of Earth's axis, we would not experience changing seasons.

The tilt of the axis

400

Some animals fall into a deep sleep-like state during the winter to save energy. What is this called?

hibernation

500

This forms when a cold air mass pushes under a warm air mass, often bringing sharp storms.

A cold front

500

This state of matter has no definite shape and no definite volume, and its particles spread out to fill its container.

Gas

500

If a car travels 120 miles in 2 hours, this is its average speed.

60 mph

500

This invisible pulling force keeps all the planets and moons in their orbits.

Gravity

500

This hot and wet biome near the equator has the greatest variety of plant and animal species.

Tropical Rainforest