Loading...Lessons in Matter and Energy
| RESOURCE | GRADE LEVEL | MEDIA TYPE |
|---|---|---|
Banana HammerTo show simple physical change, a banana is frozen in liquid nitrogen and used to hammer a nail into a piece of wood. |
4 |
Video |
Barfing PumpkinThis demonstration shows chemical change with hydrogen peroxide decomposing into water and oxygen. |
4 |
Video |
Breathing BlueIn this demonstration of chemical change, the presenter blows breath into a methylene blue solution releasing carbon dioxide which acidifies the water and changes it from a bright blue color to green. |
6 |
Video |
Ice BombThis demonstration shows the effects of temperature on air and water inside a container. As the water inside a 1/8-inch cast iron container freezes, it expands causing the container to break. |
7 |
Video |
Brachistochrone CurveThis demonstration provides an answer to the question, “What is the path producing the shortest possible time for an object to descend from a given point to another point, under constant gravity with no friction?” |
8 |
Video |
Glowing SpinachIn this demonstration, stored energy in plants is made visible by shining a black light on the chlorophyll that has been extracted from chopped spinach. |
6 |
Video |
Shuttle TileThis demonstration traces the transfer of thermal energy by conduction with the use of a space shuttle tile. |
5 |
Video |
Sound and VibrationThis two-part demonstration uses an aluminum rod and a mixture of cornstarch and water—oobleck—to show that sound is produced by the vibration of matter. |
8 |
Video |