For each science topic, we have a little experiment. This month, we made the old school tornado out of two 2-liter bottles. My kids LOVE this simple little thing. Some of them even work for it as a reinforcer throughout the school day.
The experiment is easy to set up. You just need two 2-liter bottles and some duct tape or a fancy tornado tube (we have one of these and it works great...no leaks!). I found a tornado tube on amazon for $3...check it out here.
After the experiment, I have the kids fill out this simple comprehension sheet as well. Get your FREE copy by clicking here.