Last weekend the kids and I started to play with Oobleck - a non-Newtonian fluid - link to prior post here
We kept the fun (and the mess) going this Sunday - by mixing up another batch. The first attempt at creating a standing wave inside a beaker failed - a good reminder that failure is a part of science.
So we headed outside with our hacked subwoofer with a plastic + aluminum foil membrane, old iPhone (as a frequency generator) and the Oobleck.
Let the countdown begin...
Later, we got a nice 'attack of the killer blob' moment here - looks like the NNF is trying to consume the ball bearing.
Lastly, we hooked a STRING up to the gate and got a nice 'standing wave' going. Really could see Lucy 'clicking' with the concept of increasing amplitude (volume) of the speaker and seeing the height of the wave growing - and changing the frequencies and seeing number of nodes grow. Photo is poor quality - tough for super-fast iPhone to capture what is clearer to human eye, but a rough wiggle can be seen at 50hz...
Another fine day - science, mess and fun!
About this blog
Kids Love Science & Experimentation - and so do I!
Here is a compilation of Blogs and information on stuff that I work on with kids in our community - and also other articles or information that might be interesting to other people who are 'diving deep' into STEM
Created: September 07, 2014English