| What are appropriate science projects for 4th | | | | electric drill and drill a hole in the cap of the soda bottle. |
| graders? This is the question that you, the parent, | | | | You want the plastic drinking straw to fit snugly into |
| might find yourself asking when your child brings home | | | | this hole. You can use tape to get the straw to stay. |
| the annual science fair handout. Obviously, you cannot | | | | 2. Take the soda bottle and put it upside side down |
| do the volcano every year. But what should you do | | | | into the vase. (Enter the straw end first.) The straw |
| instead? What kind of other projects are there? Don't | | | | should reach halfway between the top of the vase |
| worry. You do not need to be a scientist to figure this | | | | and the bottom of the vase. |
| out. | | | | 3. Take scissors and cut the bottle of the soda bottle |
| Here is one of many science projects for 4th graders: | | | | off. Make sure to get rid of the four protrusions that |
| Materials (what is needed for the experiment) | | | | are commonly found on most soda bottles. With the |
| Adults might want to help the child handle some of the | | | | bottom gone, you can now place things into the bottle. |
| equipment. | | | | 4. Fill the neck of the soda bottle with cotton balls. |
| -cup of muddy water | | | | 5. Now it is time to put our rocks into the bottle. First |
| -cotton balls | | | | put in the coarse gravel. Then put in the fine gravel. |
| -scissors | | | | Next comes the large grain sand. On top of that is the |
| -tape | | | | fine grained sand. And finally, all the way on top, layer |
| -plastic drinking straw | | | | some paper towels. |
| -clear vase | | | | 6. Take a picture of the glass of muddy water next to |
| -paper towels | | | | your man made filter. These pictures can be used in |
| -electric drill | | | | the results section. |
| -an empty, liter soda bottle (plastic) | | | | 7. Pour the muddy water into the soda bottle. Watch |
| - rough gravel | | | | the water drip from the straw and into the vase. What |
| -fine gravel | | | | color is it? |
| -large grained sand | | | | 8. Time how long it takes the water to come through. |
| -fine grained sand | | | | Take pictures showing the results. |
| -camera | | | | 9. Using rocks, you have created a filter for muddy |
| Procedure | | | | water! - And science projects for 4th graders! |
| 1. Adults might want to help with this step. Take the | | | | |