Lesson 2 Flashcards
Revolve
ORBIT
move in a CIRCLE AROUND it
(each time Earth orbits the sun 1 time is 1 year)
Does the sun have any satellites?
Yes. It has natural satellites. Earth is one. Also, the other 7 planets, several dwarf planets, and thousands of asteroids, comets, and meteoroids.
sunspots
Little dark spots on the sun. They are spots that are cooler than the rest of the sun.
solar eclipse
When the Moon gets right in the path between Earth and the sun.
rotate
SPINNING
each time Earth spins around 1 time is 1 day
Why do you see color?
Light waves that are not absorbed into an object bounce into our eyes. Our eyes tell our brain what kind of light it is and our brain makes the color appear as it does.
How many miles away is the sun?
Roughly 93 million miles away
How many Earths would fit inside the sun?
1,297,126
over 1 million
What does the surface of Mercury look like? What are some reasons it might look like this?
Mercury has lots of craters. Asteroids from outer space may have hit it because Mercury does not have an atmosphere.
What is the best time of year to see Mercury without a telescope? Why?
Early in the morning or early at night. It is close to the sun, so it tends to rise and set with the sun.