Experiment of the Week
How to watch nature
Slow down and watch carefully, and you’ll be amazed at the things you see in nature. This week, science instructor Robert Krampf talks about ways to practice your observational skills while watching wildlife.
Why does it float?
Why does a cork float and a penny sink? This week, science instructor Robert Krampf plays with a density column to demonstrate the science of density and explain why things float.
Why things go bang
Why do fireworks make so much noise? Why does a balloon pop? This week, science instructor Robert Krampf explains the science of loud noises.
Lifting ice with a string
Can you lift an ice cube out of a bowl of water with a piece of string? Of course you can! This week, science instructor Robert Krampf shows you how to do a cool trick that will amaze your friends.
How light is air?
How light is the air in your room? Probably heavier than you think. This week, science instructor Robert Krampf demonstrates an easy way to calculate the weight of the air in your room.
Measuring lightning
Many people know that you can use thunder to tell how far away the lightning is, but they often get confused as to how to do it. This week, science instructor Robert Krampf reveals the secret of measuring lightning.
Trick your nose with selective smelling
You’ve seen optical illusions, but have you ever tried a “nose illusion?” This week, science instructor Robert Krampf demonstrates the concept of selective smelling.
Noisy string
Ever wondered how a loudspeaker works? This week, science instructor Robert Krampf shows you how to amplify strange sounds using string and a plastic cup.
Hanging a hammer
Can you hang a hammer from the edge of a table using just a ruler and some string? This week, science instructor Robert Krampf shows you a fun way to use physics to impress your friends.
Planets and pennies
How much would 100 pennies weigh on Jupiter? This week, science instructor Robert Krampf shows you a fun way to see how the pull of gravity varies on the planets in our Solar System.
Measuring your head in feet
Did you know your foot is the same size as your head? This week, science instructor Robert Krampf shows you how measuring your foot can give Forensic Osteologists information about other parts of your body.
Same bottle, different sounds
In last week’s experiment, science instructor Robert Krampf showed how bottles filled with different levels of water made different sounds when you tapped on them. Then he asked how those tones would change if you blew across the tops of those same bottles. This week, he provides the answer and explains why the water level affects the sound.