Make Your Own Rollercoaster

Did you know roller coasters are all about Science? Its called force and motion. Today I am going to tell you how to do one of my favorite experiments. You might think its not really an experiment because its so much fun. But remember, an experiment is just finding out an answer by changing things in an organized manner.
First you will need to collect your Materials. In the picture you will see a big grey tube (pipe covers) . This is found at the hardware store such as Home Depot in the plumbing department.

Mine cost $1.18. You just need one but I always buy 2 just in case I need it.
Other materials include scissors, tape and a marble.
Now for your Procedure
1. Cut the cylinder shaped hose in half (see picture)
This is easiest if a helper holds it out straight and holds it open while you cut.
2. Now you should have 2 long pieces. You can use tape to tape them together or just use one for your experiment.

 Materials                                                                Cut right down the middle of the cylinder

3. Place your marble on the middle indention and let it go. (see picture)

Now comes the experiment part:
How can you make it go? Without pushing it will it go? If you hold one end up higher, will it go? What force makes it go? How can you make it go faster? Can you make it curve? Can you put a hill in it? How do you get enough force to make the marble go up the hill?
Now for the big challenge! Can you make it go through a loop ?
What happens if you try two marbles?

Think about the forces each time you change. What have you learned?

Isn't Science fun?