Planets
Our Solar System
Phases of the Moon
Beyond Our Planet
Vocabulary
100

This is the smallest planet in our Solar System.

What is Mercury?

100

This is the closest star to Earth.

What is the Sun?

100

This phase of the Moon occurs when it is fully illuminated

What is a full moon?

100

This planet orbits the Sun in just 88 Earth days, making it the fastest in the Solar System.

What is Mercury?

100

This term describes the path a planet takes as it travels around the Sun

What is an orbit?

200

This planet is known as the "Red Planet."

What is Mars

200

A group of stars that forms a recognizable pattern is called this.

What is a Constellation?

200

This phase occurs when the Moon is completely dark from Earth’s perspective.

What is a new moon?

200

Known for its Great Red Spot, this planet is so large that all the other planets could fit inside it.

What is Jupiter?

200

The spinning motion of a planet on its axis is called this

What is rotation?

300

The largest planet in our Solar System

What is Jupiter

300

This planet has the most moons in our Solar System, including Ganymede, the largest moon.

What is Jupiter?

300

This is the term for when the Moon appears to be growing larger.

What is waxing?

300

This planet's day is longer than its year, as it takes 243 Earth days to rotate once on its axis.

What is Venus?

300

This word relates to the Sun and is often used to describe energy or events originating from it.

What is Solar?

400

This planet has rings made mostly of ice and rock

What is Saturn?

400

This type of star marks the end of a star's life cycle and can result in a black hole.

What is a Super Nova?

400

This is the phase where the Moon is three-quarters illuminated

What is a waxing gibbous?

400

This "ringed planet" has moons named Titan and Enceladus, famous for their potential for life.

What is Saturn?

400

This term describes anything related to the Moon, such as a type of eclipse.

What is Lunar?

500

This planet rotates on its side and has a blue-green color.

What is Uranus?

500

The North Star, which is almost directly above Earth's North Pole, is called this.

What is Polaris?

500

This rare event occurs when Earth’s shadow blocks the Sun’s light from reaching the Moon.

What is a solar eclipse?

500

This planet is named after the Roman god of the sea and has the strongest winds in the Solar System.

What is Neptune?

500

The imaginary line that a planet rotates around is called this?

What is an axis?