Earth
Sun
Moon
Planets
Stars, Comets, etc.
100

What is 365.25 days?

Time it takes for earth to travel around the sun

100

Aurora Borealis + Aurora Australis (N. lights/S. lights) are caused by ?

Solar Flares

100

Does the moon generate its own light?

No

100

What is the closest planet to the sun?

Mercury

100

Do Comets travel around the EARTH in an elliptical path?

NO

200

What is the branch of science that deals with the physical universe beyond the earth's atmosphere?

Astronomy

200

An area on the sun's surface that is relatively darker and cooler than the rest of the surface is called?

A Sunspot

200

The moon's gravitational forces explain this ocean phenomenon.

Tides
200

Pluto is a _________ planet.

Dwarf

200

Star distances are measured in 

Light years

300

The gaseous layer that surrounds the Earth or another heavenly body.

Atmosphere

300

Name the hottest layer of the sun

Corona

300

29.5 days 

Time it takes the moon to go around the earth.

300

Name 2 Terrestrial planets:

Mercury, Venus, Earth and Mars

300

The hottest stars are which color?

Blue-bluish

400

The action of one surface material, or object rubbing against another.

Friction

400

The surface of the sun is believed to be made up of mostly ________?

Plasma

400

Name the 4 phases of the moon

New, Waxing, Full, Waning

400

Jupiter, Saturn, Uranus and Neptune are called _______ planets.

Jovian

400

Meteoroids are called ________ once they enter our atmosphere.

Meteors

500

The two major types of telescopes are called?

Refracting and Reflecting Telescopes

500

The 2 most abundant gases that make up the sun are?

Hydrogen and Helium

500

Explain Synchronous Rotation.

Same rotation+ revolution rates, explains why we only ever see 1 side of the moon.

500

Name two planets with Rings?

Jupiter, Saturn, Uranus, Neptune

500

______ are made up of ice, dusty material with a nucleus in the center and glow as the sunlight lights up its gas.

Comet

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