Stars
The Moon
Planets
The Sun
Vocabulary
100

Bright stars can look dim in our night sky due to this.

What is distance from Earth?

100

This process takes roughly 28 days to complete.

What is the moon orbiting Earth?

100

The time it takes to orbit the Sun?

What is revolution or planetary year?

100

This is the distance, in astronomical units, the Earth is from the Sun.

What is 1?
100

The Milky Way's galaxy type.

What is Spiral?

200

The distance stars move around us.

What is little to none?

200

Our view of the Moon is why we see these changes each night.

What are the phases of the Moon?

200

The reason gravity is not the same on all planets.

What is differences in planetary mass? OR Gravity is dependent on the size of the planet. (larger=more gravity)

200

This path of the Sun is during Winter:

What is #3?

200

A tool that tells time by using the changing direction of shadows caused by the Sun's movement across the sky

What is a sundial?

300

The reason some stars are different colors.

What is their temperature?

300

This happens when the Moon moves between the Earth and the Sun, obscuring our view of the Sun.

What is a solar eclipse?

300

The main factor Mercury is not a viable planet to explore with a rover.

What is the length of its nights?(2,112hrs)

300

The Sun, as any star, provides these two things to its planets.

What are heat and light?

300

This term describes the brightness of a star, or any object.

What is luminosity?

400

The reason(s) some stars are only seen during certain seasons.

What is our view of the night sky changes?  

What is that we orbit the Sun and can only view stars at night, away from the Sun?

400

This occurs when the Moon moves in the Earth's shadow.

What is a lunar eclipse?

400

The reason temperature is an important factor in the habitability of a planet.

What is the need for liquid water?

400

This is why the shadows are longer in the Winter time.

What is the low path of the Sun?

400

Fragments of comets and asteroids that travel through space.

What are meteoroids?

500

The reason some stars are seen all year long.

What is because their location is North or South of the horizon, depending on your location on the Earth?

500

Draw: Position of the Sun, Earth and Moon for this phase to occur:

500

It must orbit a star, have enough gravity to be spherical in shape, and cleared its orbital path of other objects.

What is the criteria to be a planet?

500

The state of matter the Sun is categorized as.

What is plasma?

500

The distance around the center of a celestial body.

What is its circumference?

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