Moon Phases
Eclipses
Gravity & Orbits
Earth-Sun-Moon System
Galaxies & Solar System
100

This phase occurs when the Moon is completely illuminated from Earth.

What is a Full Moon?

100

This eclipse occurs when the Moon blocks the Sun’s light from reaching Earth.

What is a Solar Eclipse?

100

This force pulls objects with mass toward each other.

What is Gravity?

100

The Moon revolves around this object.

What is the Earth?

100

This is the ONE AND ONLY star at the center of our solar system.

What is the Sun?

200

This phase occurs when the Moon is between Earth and the Sun and cannot be seen.

What is a New Moon?

200

This eclipse occurs when Earth’s shadow falls on the Moon.

What is a Lunar Eclipse?

200

Gravity keeps planets moving in this path around the Sun.

What is an Orbit?

200

This is the main cause of Earth’s seasons.

What is Earth’s tilted axis as it revolves around the Sun?

200

The four planets closest to the Sun are rocky planets, while the four farthest from the Sun are known as these types of planets made mostly of gas and ice.

What are gaseous (gas giant) planets?

300

If the Moon is half illuminated and the light is increasing, which phase is it?

What is First Quarter?

300

During which Moon phase must a solar eclipse occur?

What is a New Moon?

300

If the mass of an object increases, what happens to its gravitational pull?

What is Increases?

300

The gravitational pull of the Moon mainly causes this ocean movement on Earth.

What are tides?

300

This is the large system of stars, gas, and dust that our solar system is part of.

What is a galaxy?

400

A waning gibbous Moon means the Moon is moving toward this phase.

What is Third (Last) Quarter?

400

During which Moon phase must a lunar eclipse occur?

What is a Full Moon?

400

What orbital shape do the planets make as they revolve around the Sun?

What is an Ellipse?

400

When the Southern Hemisphere experiences Winter, the Northern Hemisphere experiences __________

What is Summer?
400

Our solar system is located inside this specific galaxy.

What is the Milky Way Galaxy?

500

Explain why the Moon appears to change phases even though its shape never changes.

What is we see different portions of the sunlit half of the Moon as it orbits Earth?

500

Why don’t eclipses happen every month?

What is the Moon’s orbit is tilted compared to Earth’s orbit around the Sun?

500

If the Sun suddenly had less mass, how would Earth’s orbit most likely change?

What is Earth would move farther away or its orbit would become larger/weaker?

500

When the Earth experiences equal amount of daylight and night.

What is Vernal (Spring) or Autumnal (Fall) Equinox?
500

Why are scale models helpful when studying the solar system?

What is they help represent the extremely large sizes and distances that are difficult to visualize?