Things in Space Review

What is a solar system?

• all the planets, moons, asteroids, and other objects orbiting around a star

• hot ball of gas

• many billions of stars held together by gravity

• everything

What is the universe?

• all the planets, moons, asteroids, and other objects orbiting around a star

• hot ball of gas

• many billions of stars held together by gravity

• everything

What is a galaxy?

• all the planets, moons, asteroids, and other objects orbiting around a star

• hot ball of gas

• many billions of stars held together by gravity

• everything

What is a star?

• a hot ball of gas

• bodies of rock or gas in orbit

• bodies of rock that orbit a planet

• small, rocky objects that orbit the sun

What are planets?

• a hot ball of gas

• big bodies of rock or gas orbiting around a star

• bodies of rock that orbit a planet

• small, rocky objects that orbit the sun

What are asteroids?

• a hot ball of gas

• big bodies of rock or gas orbiting around a star

• bodies of rock that orbit a planet

• small, rocky objects that orbit the sun

What are moons?

• a hot ball of gas

• big bodies of rock or gas orbiting around a star

• bodies of rock that orbit a planet

• small, rocky objects that orbit the sun

What's the difference between a meteorite and a meteoroid?

• a meteoroid is outside of Earth's atmosphere, a meteorite is inside the atmosphere

• a meteoroid is inside the Earth's atmosphere, a meteorite is outside the atmosphere

• both are outside the atmosphere

• both are inside the atmosphere

What is a comet?

• a hot ball of gas

• big bodies of rock or gas orbiting around a star

• a frozen ball of gas orbiting the sun

• small, rocky objects that orbit the sun

How do we measure distance inside the solar system?

• Astronomical Units

• Light Years