Learn how to make a simple lemon battery and use it as an emergency phone charger in this hands-on science experiment. Watch step-by-step as we cut lemons, prepare copper and aluminum electrodes, and ...

Did you ever dream of having a lava lamp experiment when you were a kid? I know I did! There’s just something magical about those colorful blobs bouncing around in liquid light. Now, as a parent, you ...

"Originally published in ... Popular mechanics ... For the average boy, with few tools, and a desire to learn the principles underlying the construction of the more common electrical ...