Astronomy
Earth
Moon
Solar System
Celestial objects
100

This is the study of the heavens.

What is Astronomy?

100

This is a celestial body that orbits a star. The Earth is one of these.

What is a planet?

100

The moon is the Earth's only ______.

What is a natural satellite?

100

This star is at the center of our solar system.

What is the Sun?

100

The solar system is part of this galaxy.

What is the Milky Way Galaxy?

200

This is a person who studies the stars, planets, and other celestial bodies.

What is an astronomer?

200

This is the invisible line that the Earth spins on.

What is an axis?

200

When the Earth passes between the Sun and moon, it causes this eclipse.

What is a lunar eclipse?

200

These are the four inner planets, and have a rocky composition.

What is Mercury, Venus, Earth, and Mars?

200

This is a celestial body made of ice and has a tail made of gas and dust that always points away from the Sun.

What is a comet?

300

Astronomers use tools like ________, which make far away objects appear nearer.

What is a telescope?

300

The Earth is divided into two of these. The northern and the southern.

What is a hemisphere?

300

When the moon passes between the Sun and the Earth, it causes this type of eclipse.

What is a solar eclipse?

300

These are the four gas giants, and are beyond the asteroid belt, making them the outer planets.

What is Jupiter, Saturn, Uranus, and Neptune?

300

These are the 3 types of galaxies.

What is spiral, elliptical, and irregular?

400

This is a tool that travels outward to collect photos and data to send back to Earth.

What is a probe?

400

The four seasons are caused by the Earth's __________. 

What is tilt?

400

This is the first spacecraft that landed humans on the moon.

What is Apollo 11?

400

This is what keeps all of the planets orbiting the Sun. It is also what keeps moons in orbit of it's planet.

What is Gravity?

400

When a meteoroid enters the Earth's atmosphere, it becomes this. After it touches the Earth's surface ot becomes this.

What is a meteor and meteorite?

500

This is the most common theory of how the universe was created. 

What is the Big Bang Theory?

500

When the northern hemisphere is in winter, the southern hemisphere is in this season.

What is summer?

500

These are the eight phases of the moon.

What are full moon, waning gibbous, third quarter, waning crescent, new moon, waxing crescent, first quarter, and waxing gibbous?

500

This is the unit to measure the distance of the planets from the Sun. For example, Earth is 1 of these.

What is an astronomical unit?

500

This is the name of the black hole at the center of our galaxy.

What is Saggitarius A?

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