Moons
Why is gravity stronger in some places on the moon?
Gravity is stronger in some places on the moon because these areas have denser rock underground.
Why is Pluto no longer a planet?
It is far away from the sun and gets very little heat or light.
What force keeps things moving?
Gravity
Which planet has the great red spot?
Jupiter
Is it a big or small planet?
big
Why does the moon slowly move farther away from Earth each year?
Ocean tides transfer energy from Earth to the Moon, slowly pushing outward.
What is Pluto made of?
Rock and Ice.
What is the star in the center of the planets?
Sun
Which planet is closest to the sun?
Mercury
What is Saturn made up of?
Helium and hydrogen
Some craters never get sunlight and stay extremely cold allowing frozen water to remain solid.
Who discovered Pluto?
Clyde Tombaugh.
What tools does a scientist use?
Telescope
Which planet is known for rings?
Saturn
What number planet from the sun is it?
6
Why do we only see one Moon from the Earth?
It rotates at the same speed it orbits Earth, so the same side always faces us.
What is Pluto's orbital period?
248 Earth years.
What do you call objects that orbit the planet?
Moons
Which planet is near Earth's size?
Venus
What are its rings made of?
Asteroids
Why does the moon have so many craters but Earth doesn't?
It has no atmosphere to burn up meters and no weather to erase the craters.
How far is Pluto from the sun?
39.5 Astronomical Units.
What do you call the path planets take?
An orbit.
Jupiter
Who discovered the rings?
Christiaan Huygens