NASA
Feel the Noise
Can you hear it now? Young scientists experiment with sound waves using metal objects and string. They strike metal objects while they hold them and as the objects hang from a string to compare the sound. They discover that sound travels...
American Chemical Society
The Same Parts Can Make Many Objects
Snap to it! Young experimenters use Snap Cubes to model how a larger object is created from a smaller parts. Using a guide, they rearrange their cubes to create all possible arrangements of four and five cubes.
American Chemical Society
Atoms Can Be Rearranged to Make Different Molecules
Uncover the building blocks of the universe as budding chemists explore atoms and molecules in an exciting inquiry-based activity. Investigators view an interactive video describing the chemical structure of six molecules. Using...
Rube Goldberg
Rube Goldberg's Simple Normal Humdrum School Day
If you're going to build a machine, you might as well make it interesting and amusing. A set of eight lessons and activities introduces simple machines using Rube Goldberg machines. A culminating project challenges techies to create and...