Copyright © 2012 InteractiveScienceLessons.com

•Sun•8 planets•their 167 moons•Dwarf planets•Asteroids•Comets•Dust

What is a Solar System anyway?

Copyright © 2012 InteractiveScienceLessons.com

• average in size compared with other stars•at the center of our solar system• the largest body in our

solar system

The Sun is…

•a nuclear heat inferno

average, nuclear, center, largest

Copyright © 2012 InteractiveScienceLessons.com

• average in size compared with other stars

•at the center of our solar system

• the largest body in our solar system

The Sun is…

•a nuclear heat inferno

2 cm from sun4 cm from sun

7 cm away

Gravity- an invisiblethat decreases with

when the Moon

M

v

E

and smaller size.force between objects

distance

Tides-tugs on the Earth

of attraction

magnet demo, “gravity”arrows-m,vorbits-m,vpredictableearth/moon orbit“tides”