Choosing light bulbs for your home has changed so much in the last ten years. How do you decide what’s best? Here’s an experiment children can do comparing light bulbs. Which makes the most sense for the family? Congress passed a law in 2007 that phases out the US production of incandescent bulbs. The old-style tungsten-filament…
fluorescence
Solar beads ultraviolet detection STEM activity
Solar beads are a fun way to learn about the importance of sun exposure. We should put on sunscreen every day and think about reapplying it. We can teach children a craft project with pony beads and experiment with the UV rays given off by light sources and test sunscreen products for effectiveness. This post contains…
Glow stick experiment
Glow sticks are easy to find in many colors around some of the holidays. What a great time for an energy glow stick experiment that demonstrates chemical and physical principles. Safety note: Be sure to explain safety precautions to children. This experiment uses hot water. Skin protection should be used. Avoid getting chemicals from the the…
Germs, black light, and slime, oh my!
How are germs transferred among people? What are good methods to remove germs from your hands? These are the questions we will ask the children to answer during this fun, glow-in-the-dark activity. While we’ve got the black light out, let’s add another activity to teach about polymer science. The children will mix two solutions together…