Microwave Light Bulb – SICK Science | Science Experiments | Steve Spangler Science

This interesting resource shows what happens when a light bulb is placed in a microwave oven.  Click on the source to get a video and Steve Spangler’s explanation of how this works.

Source: Microwave Light Bulb – SICK Science | Science Experiments | Steve Spangler Science

Coke versus Diet Coke Density Demo

This demonstration reviews the concept of density. It examines why certain objects float or sink in water and highlights some interesting information about cola versus diet cola soft drinks.

Click here to download the complete demo

This demo is part of the STAO demo collection.  Click here to check out all of them.

Potato Candle Demo

In this demonstration, a peeled potato is cut into the form of a candle and an almond slice is used as the candle’s “wick.” The teacher lights the almond slice on fire and it burns. The students see the object, and make observations about it. Continue reading

Supersaturation Tower – Flinn Scientific Canada

In this demo, the teacher creates a tower of sodium acetate trihydrate from a supersaturated solution. Your students’ curiosity will grow as you demonstrate the concepts of supersaturation and crystallization!

The sodium acetate solution is a supersaturated solution. The seed crystal is the start of a chain reaction, which causes all of the sodium acetate trihydrate molecules to crystallize. Crystallizing means that a liquid is becoming a solid, or “freezing.” The solution is supersaturated and supercooled—this means that it contains more dissolved sodium acetate than a saturated solution and has been cooled to below its freezing point without crystallization occurring.

Click here to download the complete demo