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This week's experiment comes from all of the e-mails that I have been receiving about the danger of heating water in a microwave oven. Although it is very uncommon, under certain conditions, you can superheat the water to a point where stirring or adding sugar can cause it to almost explode into steam. To investigate this, you will need:
This experiment comes from some of my wife's creativity. Our hotel has breakfast every morning, and she has been putting some extra orange juice in our freezer each morning. By evening, it is nicely frozen and ready to be eaten. Besides being delicious, it also offers a great lesson on the science of freezing. To try this, you will need:
This is a fun science experiment to try the next time you go swimming. It is a very dramatic demonstration of the difference between how sound travels in liquids and gases.
The term dry ice may sound confusing, but it is the name we use for frozen carbon dioxide. It is fascinating stuff, but can be dangerous if you do not follow the safety guidelines.
Sometimes things are so common that we never stop to really think about them. We all know from experience that a piece of paper that is soaked in water does not burn easily. Wet wood does not work well in a campfire. What is it about water that keeps things from burning? Think about it first, and then watch the video.
Imagine for a moment that you are stranded in the desert, and running short on water. Or imagine that you are in a boat far out at sea, surrounded by salt water, but no fresh water to drink. Is there any way you could use some science to get something to drink? Of course there is!
