Universe
Water
Weather & Climate
Earth's Surface
Resources
100

This force keeps planets in orbit.

What is gravity?

100

Water changing from liquid to gas is called this.

What is evaporation?

100

Energy from the Sun reaches Earth by this process.

What is radiatoin?

100

The layer between Earth’s crust and core.

What is the mantle?

100

These resources can be replaced naturally. 

What are renewable resources?

200

This theory explains how the universe began.

What is the Big Bang Theory

200

Water stored underground is called this.

What is groundwater?

200

Cool air moving from land to sea at night is called this.

What is a land breeze?

200

Rocks changing from one type to another describes this cycle.

What is the rock cycle? 

200

Coal, oil, and natural gas are examples of these resources.

What are nonrenewable resources?

300

The moon phase when the moon appears completely lit.

What is a full moon?

300

Ocean water density changes because of temperature and this.

What is salinity (dissolved salts)?

300

The warmer the air, the greater the amount of this in the atmosphere.

What is humidity?

300

The movement of Earth’s plates is called this.

What is plate tectonics?

300

Solar-powered streetlights are an example of using this kind of energy.

What is renewable energy?

400

These planets are closest to the Sun and are rocky.

What are the terrestrial planets?

400

Cutting down trees decreases this process in the water cycle.

What is transpiration?

400

Heat transfer by movement of fluids is called this.

What is convections?

400

Carrying away rock and soil by wind or water is called this.

What is erosion?

400

Poor air quality is often caused by this human activity.

What is industrial pollution/factories?

500

The area between Mars and Jupiter filled with rocky objects.

What is the asteroid belt?

500

Water falling from clouds to Earth is called this.

What is precipitation?

500

Earth’s atmosphere is best described as this around Earth.

What is a thin layer surrounding the planet?

500

Alfred Wegener’s theory was criticized because he lacked this.

What is an explanation for how continents moved?

500

Climate change is mainly caused because the atmosphere reradiates more of this back to Earth.

What is heat/thermal energy?

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