This is my favorite project from this month’s STEM Fair.  A student of mine decided to build CO2 Rocket cars.  I loved building one of these in middle school.  I distinctly remember my simple teardrop design coming in last and remarking – well, that’s unfair.  I didn’t know I could do THAT! – when I saw the winners thin, stretchy, leggy thing.  I looked like a duck next to a greyhound. Last time, my teacher bought a kit.  This time, I chose a simple design for this piece – a pine wedge cut from a 2×4, 1/4 inch dowels as … Continue reading STEM Project: The CO2 Rocket Car