Planets 1
How many planets are in our solar system?
8
The path a planet travels around the sun is called the ______.
orbit
This object appears to change shape and has phases.
The Earth's moon
This is the smallest planet.
Mercury
A scientist who travels into space to do experiments.
astronaut
This is a space rock that lands on the Earth.
meteorite
What are Saturn's rings made of?
ice and dust
The layer of gases surrounding a planet is called the _____.
atmosphere
Why does the moon appear to shine at night?
It reflects sunlight onto the Earth's surface.
This is the fastest spinning planet in the solar system.
Jupiter
This holds the planets in orbit around the sun.
gravity
What is a star?
A star is a giant, burning ball of gas.
Which planet is furthest from the sun?
Neptune
What is a solar system?
A solar system is a group of planets, moons, and sun that stay together.
This space object always has a tail that points away from the sun when it visits our solar system.
comet