4th grade science experiments don't need to be overly involved and they can usually be done alone, with minimal help from teachers or parents. Children this age are very curious and full of energy so they should have no trouble coming up with a topic to experiment.
One simple science experiment they may want to try is to see if draining water always spirals in the same direction. This is interesting and quite easy to test. It also involves a little foot work, which the kids will likely enjoy. All you really need to do is flush a toilet and see which way it drains, then fill a sink and see which way it drains, and then compare your results.
Another fun one might be to see which material would protect an egg from a six- or eight-foot drop. Some materials you could use would be pillows, bubble wrap, blankets. Styrofoam chips, towels and more. It's pretty easy, just be sure to drop the egg from the same height each time and record your findings.
One more idea for 4th grade science projects could be to see if the shape of an ice cube affects how long it takes to melt. You can test this by getting some ice cube trays in different sizes. These types of trays are usually sold at the dollar store. Then freeze water in the trays. Once they're frozen you can take once ice cube of each shape and set it on a dry surface at the same time and see which ones melts the fastest.
For more 4th grade science experiments and step-by-step instructions, visit http://www.easy-kids-science-experiments.com Be sure to check out the site for tons of simple science projects elementary science experiments, middle school, and high school science.
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