Try not to bulk up your free PPT presentation with lots of statistics and bulleted lists. While words are easier to dash off, a good quality image will genuinely attract the attention of your audience. Let us be frank, finding the right image can be quite a hassle, especially, when you don't even know if you have the permission to use it.
Learn how to use science projects in your class room. This article also includes a list of a variety of websites with information about different science projects