Chapter 16 Flashcards
Planet
a large, ball-shaped body of matter that revolves or travels around any star.
Solar System
the sun, eight planets and their moons, dwarf planets and other objects that revolve around the sun.
Orbit
the path of any object in space that revolves around another object in space
Asteroid
a small chunk of rock that orbits around the Sun
What are meteoroids?
Meteoroids are bits of rock and metal passing through our solar system
What are comets?
Chunks of ROCK, DUST and ICE
What is the streak of light called that meteoroids make in the sky?
a METEOR
What are the names of the eight planets?
Saturn Uranus Neptune Jupiter Earth Mars Mercury Venus
What keeps the solar system stay together?
The Suns’ GRAVITY keeps the solar system together
Name 2 objects int he solar system
Comets and Meteoroids
Why is Mercury so hot and Neptune is almost frozen?
Mercury is so hot because it is so close to the sun.
Neptune is cold because it is so far away from the sun.
What planet is the smallest planet?
Mercury
How many Earth days Does it take for Mercury to orbit the sun?
88 Earth days
What is Venus covered with ?
Venues is covered with huge volcanos that spew poisonous gases
Why can people and animals survive on Earth?
Because Earth is not too hot or too cold, has a lot of liquid water and has atmosphere (oxygen and carbon dioxide) that living things need.