How do scientists know what an object looks like on the atomic level? This lesson lets kids understand how, by scaling up the atomic force microscope into a manipulative model, where students use a "probe" to discover what's hidden inside their box. This is a great activity for math and graphing as well. Ask the kids to take their plotted points home and figure out what their object is for homework.
Do you have any recommended science experiments using inexpensive materials? Did you find these ones useful? Let us know what you think.