what is a good science project that can show you something about our solar system

 

it needs to be 3-d

needs to explain something

needs to be cheap

needs to be done in 1 week

 

and i cant do the planets rovolve around the lightbulb thing

 

what is a good 3-d science project

 

please i need your ideas.

I thought I'd give you a reply as nobody else would.

 

Provided it does't have to be a 3-D model you could.

 

Make a pin-hole camera from an old shoe box and some thin paper, you can use this to observe the sun.

 

Maybe somthing with gyroscopes, their properties are linked with the axial rotation of the earth, their angle depends on where on Earth you're standing.

(Try holding a spinning bicycle wheel whilst sitting in a swivel office chair.)

 

A tray full of white powder (Flour or sugar) with a layer of darker powder on top (or vise-versa) will replicate the surface of the moon, if you throw a small pebble into it, it creates a very realistic meteor impact.

 

My own personal favourite would be a 'Scale model' of the solar system.

a ping-pong ball would represent the sun,

a grain of sand about 5 meters away would represent the Earth,

a peppercorn about 10 meters away would represent Jupiter, and so on...

This shows people just how huge the solar system is.

If you were to put another 'sun' ping-pong ball about 3000-4000 miles away, this would represent our nearest star.

 

(Please double check the mesurement on the last one, they're only vague distances!)