Earth
Stars and Galaxies
Weather and Climate
Rocks
Human Impact
100
The outermost layer of the Earth.
What is the crust?
100
Bodies made of hydrogen and helium gas.
What are stars.
100

Air with similar temperature and humidity.

What is an air mass?

100
A naturally occuring solid mixture of one or more minerals and organic matter.
What is a rock?
100

Renewable or Non-renewable: Oil, Natural Gas, and Coal

What are non-renewable resources?

200
The center of the Earth.
What is the core?
200
Clouds of dust and gas that create the next generation of stars.
What are nebulas.
200

This brings happy sunny weather with few clouds.

What is a high pressure system?

200
A naturally formed solid matter that has crystalline structure.
What is a mineral?
200

Renewable or Non-renewable: Wind; Solar; Geothermal.

What renewable?

300
The layer of the Earth between the crust and the core.
What is the mantle?
300
Vast groupings of stars.
What are galazies.
300

During the day, wind blows from the ocean toward the land. 

What is a sea breeze?

300
Rocks that form when hot, liquid rock (magma) cools.
What are igneous rocks?
300

Burning fossil fuels produces...

What are greenhouse gases?

400
Large pieces of the lthosphere that move around on the Earth's surface.
What are tectonic plates?
400
The planet closest to the Sun.
What is Mercury.
400

This front brings wind and storms.

What is a cold front?

400
Rocks whose structure, composition, and texture have changed from those of the original rock.
What are metamorphic rocks?
400

Planting trees, riparian buffers, porous cement, and green roofs.

What are best management practices?

500
Vibrations that move away from an earthquake.
What are seismic waves?
500
The planet that is no longer a planet.
What is Pluto?
500

Most Atlantic hurricanes form here?

What is off the coast of Africa?

500
Rocks formed when grains of rock or minerals (sediments)are buried, squeezed together, and cemented by minerals.
What are sedimentary rocks?
500

Law that limits air pollution.

What is the Clean Air Act?