Saturday, October 26, 2013

Halloween Automata

This week we worked on Halloween theme automata. Take a look at the instructions for simple automata here.

The star is the "Witch in a Cauldron" by Dawna.

Wednesday, October 23, 2013

Dry Ice Bubbles

This week, in preparation for Halloween. We did some spooky science.

One of the activities was making bubbles with dry ice.

1) Put a chunk of dry ice and a half cup of warm water in a cup.
2) dip a pipe cleaner into bubble solution

3) Slide the pipe cleaner over the mouth of the cup to stretch a film over the opening

4) Watch the escaping CO2 gas fill the bubble with fog

Or just drop a chunk of dry ice directly into the bubble solution. This will make a foggy foam "grow" out of the cup.
We use Exploratorium's home made bubble solution recipe.

Wednesday, October 16, 2013

Motorcycles!

This week some of the kids decided to make model motorcycles.
materials: hardboard, craft sticks, bbq skewers, pine scrap wheels.

Vroom Vroom!

Use a scroll saw to cut out the body. Use a drill press (dremel is big enough) to drill out the craft sticks.