Astronomy
Solar System
Planets
Asteroids, Comets, Meteoroids
Gravity & Inertia
100

This is a very large group of stars, gas, and dust held together by gravity.

What is a galaxy?

100

This is a large, round object that has cleared its orbit of debris and orbits a star.

What is a planet?

100

This planet looks a lot like Earth's moon.

What is Mercury?

100

These are made of rock and metal. Millions of them can be found between Mars and Jupiter.

What are asteroids?

100

This keeps planets in orbit around the Sun.

What is gravity and inertia?

200

These are shapes made by groups of stars. 

What are galaxies?

200

An early Earth-centered view of the Solar System is called this. 

What is geocentric?

200

This planet is called Earth's twin.

What is Venus?

200

The tail of this object always points away from the Sun.

What is a comet?

300

Name two types of stars.

What are Spiral, elliptical, irregular, barred spiral?

300

The current view of the solar system is Sun-centered and is called this.

What is heliocentric?

300

This planet has 7 thin rings.

What is Saturn?

300

These do not hit Earth because they burn up in our atmosphere.

What are meteors?

400

A group of planets orbiting a star is called this.

What is a solar system.

400

This mnemonic helps us remember the planets in order.

My Very Educated Mother Just Served Us Nachos.

400

This planet has a great red spot that is a giant storm that has been going on for 300 years.

What is Jupiter?

400

These are known as shooting stars.

What are meteors?

500

This includes all matter and outer space, and everything that exists in space. It has been expanding since the Big Bang.

What is the universe?

500

List the planets in order, starting with the closest planet to the Sun.

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

500

The surface of this planet looks like a red desert.

What is Mars?

500

These are made up of dust, ice, and rocks and orbit the Sun. They are called dirty snowballs.

TBD

600

Put these in order by size star, galaxy, solar system, universe, planet.

What is planet, star, solar system, galaxy, universe

                            or

what is universe, galaxy, solar system, star, planet

600

These are the two groups of planets, those closest to the Sun and those further from the Sun. They are separated by the asteroid belt. 

What are rocky/terrestrial planets and what are gas/ice giants?

                               or

What are inner planets and outer planets?


600

This is the only planet with plants and animals.

What is Earth?

700

This is how long ago scientists believe the universe came to be. It was called The Big Bang.

What is 13.8 billion years ago.

700

This is a natural object that orbits a planet.

What is a moon?

700

This planet rotates on its side.

What is Uranus?

800

This is the name of the galaxy we live in.

What is the Milky Way?

800

This exists between Mars and Jupiter.

What is the asteroid belt?

800

This planet is so large that all the other planets in the solar system could fit inside it.

What is Jupiter?