Moon Phases
Light and Refraction
The Earth
The Universe
100

The skinniest phase of the moon.

What is a crescent moon?

100

The bouncing back of a wave when it hits a surface through which it cannot pass.

What is reflection?

100

The period of time it takes the Earth to revolve once.

What is 24 hours?

200 bonus points for "What is 23:56?"

400 bonus points for "What is 23:56:04?"

100

This is the name of our galaxy.

What is the Milky Way?

200

As the moon is waxing, this phase comes between the half moon and the full moon.

What is waxing gibbous?

200

These colors are viewed well underwater and are commonly used in fishing lures.

What are (any number of these are accepted) orange, yellow, and pink?

200

The spinning motion of a planet on its axis.

What is rotation?

200

The amount of time it takes the Earth to completely orbit the sun.

What is 365 days?

200 bonus points for "What is 365 1/4 days?"

300

When the Earth comes directly between the sun and the moon.

What is a lunar eclipse?
300

The bending of a wave as it passes at an angle from one medium to another.

What is refraction?

300

This phenomena is responsible for seasons.

What is the tilt of the Earth?

300

The collection of celestial objects rotating around the sun.

What is the solar system?

400

This period of time is how long it takes to get from one full moon to the next full moon.

What is about one month?

400

The large amount of atmosphere light has to travel through during sunrise/set.

Why does the sky turn colors during sunrise/set?

400

These small things cause the color change of the sun's light in the atmosphere.

What are particles?

400

When the moon comes directly between the sun and the Earth.

What is a solar eclipse?

500

The light from the sun reflected on the moon is viewed differently at different positions around the Earth.

Why are there moon phases?

500

Daily quintuple:

The cause of the change in color of stars and planets because of their movement and/or the Earth's movement.

What is Doppler Shift?

500

An imaginary line that passes through Earth's center and the North and South poles, about which Earth rotates

What is the Earth's axis?

500

The reason for the apparent movement of the stars.

What is the rotation of the Earth?