Movement
Planets
Seasons
Space Debris
Miscellaneous
100

The Earth's orbit around the sun lasts this long.

What is one year (or 365 1/4 days)?

100

How many planets are in our solar system?

What is eight?

100

Without this, the Earth would not experience seasons.

What is the tilt of Earth's axis?

100

This is a frozen mass of different types of ice and dust orbiting the Sun.

What is a comet?

100

This force keeps the planets and moons in their orbits.

What is gravity?

200

How long does it take the Earth to make one complete rotation on its axis?

What is one day or 24 hours?

200

Name the four inner planets.

What are Mercury, Venus, Earth and Mars?

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 revolves around the sun.

What is an asteroid?

200

The reason the moon appears to be lit up in the sky.

What is the reflection of the Sun's light?

300

The effect of the Earth rotating on its axis.

What causes day and night?

300

Name the four outer planets.

What are Jupiter, Saturn, Uranus, and Neptune?

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

The name of the competition between the Soviet Union and the United States.

What is the Space Race?

400

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

What is "revolution"?

400

What we call a planet that is smaller than a regular planet.

What is a dwarf planet?

400

If the northern hemisphere is experiencing winter, the southern hemisphere is experiencing this season.

What is summer?

400

This is a piece of a meteor that lands on Earth.

What is a meteorite?

400

The first man in space.

Who is Yuri Gagarin?

500

The number of orbits Juan has experienced in his lifetime if he is 11 years old.

What is 11?

500

Only the outer planets have this unique feature.

What are rings?

500

What we call the time of year when day and night are of equal length.

What is an equinox?

500

This is the galaxy in which our solar system resides.

What is the Milky Way?

500

Spacecraft that gather data without a crew.

What are space probes?

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