Planets
How many planets in our solar system?
8
The color of the hottest stars.
Blue
The _____'s gravity holds our solar system together.
sun (could also say planets and sun)
True or false:
The Milky Way is 1,000 lightyears across.
False (100,000 lightyears)
Earth spins clockwise or counterclockwise?
Counterclockwise
Where is the asteroid belt?
Between Mars and Jupiter.
The color of the coldest stars.
Red.
If _____ increases, gravity increases.
mass
The object believed to be at the center of the Milky Way Galaxy.
Super massive black hole.
The famous telescope we discussed in class.
Hubble Space Telescope
How many moons does Mars have?
2
Phobos and Deimos
What is a shooting star?
A meteor burning up in our atmosphere.
Why don't astronauts feel Earth's gravity on the ISS?
Because they are in a constant freefall around Earth.
True or false:
It takes about 250 million earth years for our solar system to make one trip around the Milky Way.
True (200-250 million years)
Why does water stay together on a penny or on a washcloth in space?
Surface tension (often called water tension)
How many moons does Saturn have? (within 10)
82
What kind of star will our sun become in a few billion years?
Red Giant
Who is credited with "discovering" gravity?
Sir Isaac Newton
Have we taken a photo of the whole Milky Way? Yes or no? Explain.
No. It would take to long to get far enough away and come back (even at the speed of light)
Hottest planet in our solar system?
Venus
What is the only planet to rotate on its side?
Uranus
What is our star burning for fuel?
Hydrogen
What is the gravity on our moon? 1/4, 1/2, or 1/6 of Earth's gravity?
1/6
What shape is our galaxy?
Spiral or barred spiral galaxy
What planet spins clockwise (it's the only one that does)?
Venus