Gravenstein students in TK-2nd grade have been doing lots of fun experiments and engineering projects this fall (see summary below). This month they have been making robots out of toothbrushes.

1st and 2nd grade students will be taking home these brush bots in January, minus the battery, which you can buy on Amazon for around $1.50 (see link below).

Button Batteries

Instructions for Brush Bot 2.0, although you can also build them without the connector and battery holder, just using tape to connect the wires to the battery directly. (alternative brush bot instructions)

Gravenstein STEM Summary: 1st and 2nd graders made solar ovens with some very creative reflectors. Kindergartners made super long chains out of pipe cleaners, mixed up chemicals (non-toxic) in test tubes, and launched Alka-Seltzer rockets. The 1st and 2nd graders built rockets too. They started by making strawkets, then worked in teams to build cardboard rockets that launched with real rocket engines.