Tuesday, October 12, 2010

Sound Science

This week, our science topic is "sound." We're learning a little bit about how sound travels, the silence of outer space, and demonstrating how the human ear works. Today we did two really fun experiments out of our new book,The Usborne Big Book of Experiments.

Can you hear me now?

The first was to build a two-cups-and-a-length-of-string-a-phone. Which probably has a better name than that, but you get the gist. The kiddos were amazed that it actually worked. The particularly neat thing was that they could literally feel the vibrations of the string, which was a great demonstration of sound waves.

Drum and candle

The second involved building a sort of makeshift drum, and then using the air vibrations created by the tapping of the drum to blow out a candle. I couldn't even count the number of times we relit the candle and repeated this experiment. A winner for sure!

Tap tap

Poof!

1 comment:

  1. What fun! I think we'll have to do some of these today.

    ReplyDelete