Ok, it probably wouldn’t be very yummy, but here’s another hands-on activity you can use that’s rather Halloween-like. Called “Make a ‘mummy’”, this Exploratorium activity is a great way to demonstrate how mummification works, by drying out the tissue in a fish using baking soda. Egyptians used a specific type of salt to […]

With halloween fast approaching, it’s time to take advantage of a frivolous holiday to do some fun science stuff.
No post about Halloween would be complete without a reference to the Grossology site. Scroll down for “lab activities”: This gets high marks from one teacher who says, “It has the simpliest of the slimey […]

Got a unit on circular motion? You may want to use an activity with a centrifuge, to show how it separates substances of different densities. Even if you’ve got a commercial centrifuge, how might you instead do a hands-on activity to show the same thing?
Try mixing red colored sugar in cooking oil in […]

Have you ever had this unusual occurrence in your freezer? This one observant science teacher says:
We had a single stalagtite form from one cube in an ice cube tray. It rose about an inch, no more than an eighth of an inch in diameter, and tapering to a sharp point. How did that […]

Here’s a provocative question about the atmosphere, from one of those most curious citizens of the world — 6th graders.

“At sea level you take a breath and fill a sandwich bag with it easily. On Mt Everest, not using bottled air, could you do the same thing? I guess the question is “How […]