| What is on
this page? |
 You
can put pictures in their correct order from oldest to
newest and get a cool poster. |
|
|
|
| How do I play
this game? |
- Make sure the SOUND on your computer
is turned on
- Click "START"
- Click and hold the mouse on a
picture
- Move the pictures until they are in
the order of oldest to newest
- Drag a picture to the brown square
to learn a bit more about it
|
|
| More cool
stuff |
 Now
if the Sun is pulling the planets, why don't they just fall
in and burn up? Well, in addition to falling toward the Sun,
the planets are moving sideways. This is the same as if you
have a weight on the end of a string. If you swing it
around, you are constantly pulling it toward your hand, just
as the gravity of the Sun pulls the planet in, but the
motion sideways keeps the ball swinging around. Without that
sideways motion, it would fall to the center; and without
the pull toward the center, it would go flying off in a
straight line, which is, of course, exactly what happens if
you let go of the string. |
|
Source: NASA Space Place |
|
Hey, you can tell everyone if you liked this game.
Click Leave a comment.
Tell your friends about this cool page. |
|
|
|
|
