Solar System LZ
Terms
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- What is a solar system?
- a sun and all the objects that move around it
- What is a galaxy?
- a group of millions of stars
- What is an orbit?
- the path that one object in space takes around another object in space
- What is an asteroid?
- a large space rock that orbits the sun
- What is a meteoroid?
- a small space rock that orbits the sun
- What is a comet?
- a mountain-sized chunk of ice and dust that orbits the sun
- What is a solar eclipse?
- the moon casting a shadow on Earth
- What is atmosphere?
- the air that surrounds Earth
- If the sun were hollow, how many Earths could it hold?
- 1.3 million
- All life on earth, weather, and our climate depend on what?
- The Sun
- What is a moon?
- a natural object that orbits a planet
- What is the Milky Way?
-
the galaxy that our
Solar System is part of - What feature of the Earth causes us to have seasons?
- The Earth is tilted a little to one side.
- What is a manned journey into space?
- a journey that includes human beings
- What is an unmanned journey into space?
- a journey that includes no humans, but only scientific equipment to collect data
- What are the main gases in Earth's atmosphere?
- nitrogen and oxygen
- If Earth's gravity equals 1, what is Mars' gravity?
- 0.38
- About how many days does it take Earth to revolve around the sun?
- 365
- How far from the Sun is Earth?
- 93 million miles
- How many rings does Neptune have?
- Four