Learn how to make a simple lemon battery and use it as an emergency phone charger in this hands-on science experiment. Watch ...

There are people who can do truly amazing and fascinating experiments, and luckily for you, we created a list of 10 simple physics experiments with everyday materials to learn and impress your friends ...

Simple machines make work easier to do. But how? Join Joan at the Discovery Center of Idaho as she tries various experiments with simple machines. Science Trek is available to stream on pbs.org and ...