| There are endless possibilities when it comes to | | | | enlist the help of an adult to drill a half inch hole in |
| fun science fair projects. It's all a matter of finding | | | | the middle of each plastic bottle cap. Next, use |
| a topic that interests you. If you enjoy the | | | | the caulking on the top of the lids to attach them |
| science fair project you are doing, it will show in | | | | together (make sure not to cover the holes |
| your work and you will have much more fun | | | | you've drilled). Then wrap a piece of duct tape |
| completing the project. It's important to let the | | | | around the two lids to ensure they stay together. |
| children choose their own science fair projects, | | | | Screw the double cap onto one of the two-liter |
| one that they find fun. It may only turn children | | | | pop bottles, then fill the other pop bottle about |
| away from the subject of science if they're | | | | three-quarters full with water. Next, add some |
| forced to do projects that are no fun. You can | | | | food coloring to the bottle. |
| help them along the way of course, but generally | | | | Screw the empty bottle onto the top of the |
| it should be their own work. | | | | bottle with the water in it. Then hold the duct |
| Ideas for fun science fair projects include making | | | | taped area with one hand and the bottom of the |
| your own tornado in a bottle. All you need for this | | | | bottle with the either. Turn the bottles upside |
| experiment is two two-liter pop bottles with lids, | | | | down and swirl them in a few quick circles. Watch |
| some duct tape, silicon caulking, water, a drill, and | | | | as a vortex forms as the water drains into the |
| some food coloring. To begin with, you'll need to | | | | lower bottle. |