My Flickr Gallery

My Flickr Gallery
create with flickr badge.

Tuesday, December 4, 2012

Sound, Salt, and May the (mechanical) Force be with you!

Okay 6th graders, what is sound anyway? They brainstormed. They took a pretest. (They will laugh SO HARD when I show them their pretest answers/drawings/reasonings at the end of the unit. Ha!)

They know that sound and light are forms of energy.

We gather around the CART of SCIENCE.

Question 1: Kids, what will happen to this salt when I shine light energy on it? They predict, then I shine the light. Hmmm. Nothing happened. Light is energy, though, so what's it doing??? Hmmm.

Question 2: What will happen to this salt if I send sound energy towards it? They predict. I pull out my big megaphone and position it near the salt. I push the button and send a high pitched and loud sound at the salt....and the salt goes crazy. The kids eyes are about THIS big. Next I scream/sing into the megaphone "DANCE SALT DANCE, AHHHHH."  The kids take turns doing the same. 6th hour piped up and suggested the ENTIRE class scream/sing at the salt at the same time. They wondered what would happen. Here is the result. (1 min. 10 seconds)