Movement
Planets
Seasons
Objects in Our Solar System
Galaxies
100
The Earth's orbit around the sun lasts this long.
What is one year (or 365 1/4 days)?
100

Why do the outer planets in the Solar System have much longer year lengths than the inner planets?

 The outer planets have longer orbital paths than the inner planets.

100
Without this, the Earth would not experience seasons.
What is the tilt of Earth's axis?
100
This object orbits the sun and has an icy tail.
What is a comet?
100
This is the galaxy in which our solar system resides.
What is the Milky Way?
200
How long does it take the Earth to make one complete rotation on its axis?
What is one day or 24 hours?
200
Mercury, Venus, Earth and Mars
What are the inner planets?
200
When part of the Earth is tilted closer to the sun, that part of the world experiences this season.
What is summer?
200

This rocky object is larger than most other types of space debris and many can be found between Mars and Jupiter.

What is an asteroid?

200

What shape does the milky way have?

What is Spiral?

300
The effect of the Earth rotating on its axis.
What causes day and night?
300
Jupiter, Saturn, Uranus, and Neptune
What are the outer planets?
300
When part of the Earth is tilted away from the sun, that part of the world experiences this season.
What is winter?
300
This rocky object is smaller than an asteroid.
What is a meteoroid?
300

A galaxy is mainly made up of what three components?

What is gas, dust, and stars?

400
What is the scientific word for Earth's orbit around the sun?
What is "revolution"?
400

What planet is closer to the sun than Jupiter, but farther from the sun than Earth?

What is Mars?

400

What causes the change in seasons?

What is the Earth's tilt on its axis and revolution around the Sun?

400
This space object enters the Earth's atmosphere.
What is a meteorite?
400

Compare the size of a galaxy, a solar system, and the universe.

A solar system is smaller than a galaxy, and a galaxy is smaller than the universe.

500

A student is observing the night sky at dusk. She notices that as the Sun seems to set in the west, the Moon appears to rise higher in the sky. Which statement correctly relates these two phenomena?

What is the Earth's rotation on its axis?

500

What is the hottest planet and why?

What is Venus because of its atmosphere?

500
If the northern hemisphere is experiencing winter, the southern hemisphere is experiencing this season.
What is summer?
500

I am a space object that orbits planets.

What is a moon?

500

We know that the milky way is a spiral galaxy. What other two types of galaxies did we learn about this year?

What is elliptical and irregular?

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