Moon
Earth
Space
Stars
Vocabulary
100

What is the moon's light source?

The sun

100

What causes seasons?

Earth's tilt

100

What force keeps objects in orbit?

Gravity

100

The sun is an average star so why is it bigger and brighter as seen from Earth...

It's closer

100

What is another word for revolving

Orbiting 

200

How long does a full moon phases cycle take as viewed from Earth?

30 days

200

What is the shape of the Earth's orbit?

Ellipse or Elliptical 

200

What is the name and shape of our galaxy?

Milkyway- Spiral Galaxy 

200

Billions of stars in one place is called a...

Galaxy

200

Earth's satellite

The moon

300

At which moon phase does a lunar eclipse occur?

Full Moon

300

What is the name for 0 degrees latitude?

Equator

300

What direction do galaxies move?

Away from each other

300

What is the name for a "baby star"

Protostar

300

Another word for Jovian Planet

Gas Planet

400

At which moon phase(s) does a Neap tide occur?

First and Last Quarter

400

Which tide has the highest high tides and the lowest low tides?

Spring tides

400

What are the four Jovian planets?

Jupiter, Saturn, Uranus, Neptune

400

What makes a star?

When gravity compresses a nebula

400

Closest to the Sun

Perihelion

500

Why do we only see one side of the moon?

Rotation and revolution are at the same speed

500

At which season are we at perihelion?

Winter

500

What is the boundary of our solar system?

The Oort cloud

500

What elements are used in Nuclear Fusion?

Hydrogen and Helium

500

Degree of "ovalness"

Eccentricity