Exploratorium
Balancing Ball
Demonstrate lift to the class that is studying aerodynamics. In the stream of air produced by a blow dryer, little physicists place a wad of tissue paper and a spherical figure to compare. Or, if you have a vacuum cleaner and beach ball,...
Teach Engineering
Equal and Opposite Thrust in Aircraft: You're a Pushover!
It's the law—every action requires a reaction, no matter how small. Pupils experience two demonstrations of Newton's third law of motion as it relates to thrust in the 10th segment of a 22-part unit on flight. Using their mathematical...
DiscoverE
An Egg-Citing Ride
Wheeeee! Young thrill seekers build a bungee jump—not for themselves, though, but for an egg. The egg must fall from a height of five feet and rebound within two inches of the ground or floor.
Exploratorium
Marshmallow Puff Tube
Let physical science stars experience Newton's first law of motion by blowing marshmallows out of cardboard tubes! Using different lengths of tubing, they find that more force is needed to overcome increasing friction, and they have a...
SRI International
Performance Assessment Links in Science: Observing Objects
This is a performance task for Grade Four students where they observe two different pendulums and compare the two types of motion. The activity is designed for a lab setting where students work at individual stations. A rubric and...