Climate & Weather
Sun, Moon & Earth
Universe & Space
Gravity & Motion
Water & Earth Systems
100

This word describes how hot or cold the air is.

What is temperature?

100

This is the correct order from smallest to largest: Earth, solar system, galaxy, _____.

What is the universe?

100

This planet has the longest year.

What is Neptune?

100

This force keeps planets moving in orbit around the Sun.

What is gravity?

100

Most of Earth’s water is found in this location.

What are the oceans?

200

This type of tide is weaker than normal and occurs during the first or last quarter moon.

What is a neap tide?

200

This lunar phase occurs when the Moon is at a 90-degree angle with the Earth and the Sun.

What is the first quarter moon?

200

According to the Big Bang Theory, the universe is doing this.

What is expanding?

200

This force is similar to the tension in a string when an object moves in a circular path.

What is gravitational force?

200

This term describes the amount of salt dissolved in water.

What is salinity?

300

This layer of the atmosphere absorbs high-energy X-rays and UV radiation from the Sun.

What is the thermosphere?

300

A solar eclipse occurs when this object moves between the Earth and the Sun.

What is the Moon?

300

This structure contains billions of solar systems, including ours.

What is the Milky Way galaxy?

300

You would weigh the most on this planet.

What is Jupiter?

300

This process changes liquid water into water vapor and begins the water cycle.

What is evaporation?

400

A desert and a rainforest have different climates mainly because of differences in this factor.

What is precipitation?

400

Earth experiences day and night because of this motion.

What is Earth’s rotation on its axis?

400

These rocky objects orbit the Sun and are mostly found between Mars and Jupiter.

What are asteroids?

400

This massive object’s gravity keeps the planets in orbit.

What is the Sun?

400

This underwater feature is a long, deep depression where one tectonic plate is pushed beneath another.

What is a trench?

500

This term describes the amount of water vapor in the air.

What is humidity?

500

This type of eclipse happens when Earth blocks sunlight from reaching the Moon.

What is a lunar eclipse?

500

Venus is hotter than Mercury because of this atmospheric effect that traps heat.

What is the greenhouse effect?

500

This object has the strongest gravitational pull in our solar system.

What is the Sun?

500

This part of the water cycle occurs when water flows over land back into rivers, lakes, and oceans.

What is runoff?