The Solar System
How many major planets are in our solar system?
8 planets
What is the sun?
a star
What is the moon made of?
a dusty ball of rock
How much of the Earth is covered in water?
71%
This planet is made mostly of ice and rock.
Neptune
What galaxy is our solar system found in?
The Milky Way galaxy
What is the sun made up of?
a big ball of burning gas
Is the moon bigger or smaller than Earth?
smaller
This planet is closest to the sun and has no moons.
Mercury
This planet is different than any other planet because it spins laying on its side.
Uranus
Name all of the planets in our solar system.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune
Name 2 things that the sun gives us.
Light and heat
What 2 things are not found on the moon?
liquid water and air
This planet is the largest in our solar system and is a very stormy planet.
Jupiter
This planet is made mostly of helium and has huge rings made of crystals and ice.
Saturn
About how many years ago was the solar system formed?
4.6 Billion (4 or 5 is acceptable)
How many years old is the sun?
4.5 billion years
What are the big holes on the moon's surface called?
craters
This planet is the hottest in our solar system and is sometimes called Earth's sister planet.
Venus
This planet is sometimes called the Red Planet because it's covered with red dirt and rocks.
Mars
Name the 6 things that our solar system is made up of.
the sun, the planets, moons, comets, asteroids, and gases
How hot can the sun get?
10,000 degrees!
How can we see the moon if it doesn't produce its own light?
It reflects light from the sun.
Name the 3 planets that are made of poisonous gases.
Jupiter, Saturn, and Uranus
Name the reason why Pluto is no longer considered a planet in our solar system.
Pluto's gravity is not strong enough to shield away other objects in its orbit.