Vocab Review
Earth and Space
Properties of Matter
Fun Science Facts
Elements and Mixtures
100

What is matter?

It means anything that has mass and takes up space.

100

What is rotation?

The Earth spins around once every 24 hours.

100

What is a solid?

Matter that keeps its shape and volume.

100

What is the Sun?

This star is the center of our solar system.

100

What is a compound?

A substance made of two or more elements chemically joined.

200

What is volume?

The amount of space an object takes up.

200

What is revolution?

Earth’s yearly journey around the Sun.

200

What is a liquid?

Matter that changes shape but keeps the same volume.

200

What is an orbit?

The Moon has this kind of motion around Earth.

200

What is a solution?

A mixture that looks the same throughout.

300

What is an element?

A pure substance made of only one kind of atom.

300

What is the axis?  

The imaginary line Earth spins around.

300

What is a gas?

Matter that has no definite shape or volume.

300

What is Jupiter?

The largest planet in our solar system.

300

What is a mixture?

A combination of substances that can be easily separated.

400

What is mass?

The amount of matter in an object.

400

What is a solar eclipse?

The Moon blocks sunlight from reaching Earth.

400

What is the boiling point?

The temperature at which a liquid becomes a gas.

400

What is Mercury?

The smallest planet and closest to the Sun.

400

What is an atom?

The smallest part of an element that still has its properties.

500

What is density?

The mass of a substance divided by its volume.

500

What is a galaxy?

A group of billions of stars, gas, and dust held together by gravity.

500

What is condensation?

The process of a gas changing back into a liquid.

500

What is a telescope?

This tool helps scientists see faraway stars and planets.

500

What is the periodic table?

A table that shows all known elements.