Rainbow in a BottleLearn how to make a rainbow in a bottle using differing levels of salt and food coloring!
Purify Your Own WaterLearn how water purification works by making your own water filter. Can you explain the importance of each filtration step?
Make Your Own HarmonicaLearn about sound waves, vibration and frequency by making your own harmonica. Can you figure out how to make different pitches?
Design a ThaumatropeLearn how to create an illusion of motion using a thaumatrope; do some research and connect it to how old animations were made!
Cotton-Ball LauncherMake a contraption for launching cotton-balls. See if you can turn it into a 'catch-and-launch' game with a friend or family member!
Read Time With a SundialMake your own sundial and learn how to read time using just the position of the sun in the sky!