That's right! The biggest hit of 6th Grade Science on Thursdays is online. Get twice as much science fun and knowledge by checking out these spell bounding Science demonstrations.
Spectacular Science Demos
Iodine Clock Reaction
Gummy Bear Destruction
Check out the violent reaction that occurs when a little innocent gummy bear is placed into a test tube of molten potassium chloride. The reaction is remarkable. Enjoy!
Tea Bag Rocket
The "Tea Bag Rocket" is a cool and simple experiment to perform that works like this. When the paper tube burns, the heat of the flame causes the surrounding air to rise upwards. The paper burns away and leaves behind a very lightweight, fine ash. The ash is lifted upwards by the rising hot air.
Elephant Toothpaste
You might remember Mom treating your scraped knee or a cut with a hydrogen peroxide. The hydrogen peroxide used in this demonstration is ten times stronger than the over the counter hydrogen peroxide you can find at the store. The foam that erupts from the cylinder is actually soap bubbles filled with oxygen gas. A secret catalyst ingredient - something that speeds up the decomposition (breakdown) of hydrogen peroxide was than added. As the reaction takes place, you'll also see steam rising from the erupting foam. This shows that the reaction is exothermic (gives off heat).
The Bed of Nails (Extreme Style)
When laying on a bed of nails, an individual's weight is more or less evenly distributed on all of the nails. Since each nail is only experiencing a small amount of the person's weight, the individual feels no pain at all. Since the block is so massive, the blow from the hammer is almost entirely absorbed by the block. The person feels very little added pressure from the block. The tiny force they do feel is not enough to cause pain.
Self-Carving Pumpkins
Microwavable Ivory Soap
If you missed this one in class, check it out! All soap contains water both in the form of water vapor (gas) inside trapped air bubbles and liquid water. When heated, the water vaporizes forming bubbles. The heat also caused trapped air to expand. When the soap is heated, the molecules of air in the soap move faster causing them to move far away from each other. This causes the soap to puff up and expand to enormous size. Unfortunately, many brands of soap except for Ivory do not work and tend to just melt in the microwave.
Dry Ice Explosion !
Dry ice is frozen carbon dioxide. A block of dry ice has a surface temperature of -109.3 degrees Fahrenheit (-78.5 degrees C). Dry ice also has the very nice feature of sublimation -- as it breaks down, it turns directly from a solid state into carbon dioxide gas rather than a liquid, like water does.
Crushing a Steel Can
When heating the empty can -- you heat up some amount of air and it expands. You then seal the can and put it in cold water. The hot air then cools off and the pressure inside the can decreases, allowing the greater atmospheric pressure outside the can to crush it.
Exploding Wall of Bubbles
Liquid nitrogen is a cold, liquefied gas with a temperature of -321° F. It is also used to freeze and destroy skin growths, such as warts. In this Thursday Thriller, the Exploding Wall of Bubbles is created by the rapid evaporation (liquid to gas) of the hot soapy water when liquid nitrogen is added to the mixture of hot water and soap.
Sulfur Hexafluoride
Everyone should know that Helium is a gas that is lighter than air, but did you know that a gas known as Sulphur Hexafluorid is much heavier than air. Check out this Thursday Thriller and be amazed at what you can do with Sulphur Hexafluorid.
Styrofoam Meets Acetone
Styrofoam is made of long chain of molecules bonded together. The acetone breaks the link between the molecules, causing it to dissolve. When the styrofoam is created, air is pumped into it to increase its insulating abilities. This air is released as the styrofoam dissolves, forming bubbles in the acetone which can be seen in the video.
6th Grade Science - Mr. I Bay Middle School 27725 Wolf Rd. Bay Village, Ohio 44140
