How To Tell How Old An Egg Is.

The chain Reaction…Just for science

Students designed this solar-powered car that can travel 600 miles fully-charged

What happens when Hydrogen peroxide is mixed with potassium iodide

Materials: 1. Water 2. A clear plastic bottle with a cap 3. Dish washing soap 4. Glitter

Steps: 1. First, fill the bottle until it reaches 3 quarters full 2. Next, add 3 drops of dish washing soap in the bottle. 3. Then, sprinkle in 3 pinches of glitter. 4. Next, put the cap on tightly 5. Finally, turn the bottle upside down. And hold it by the neck. Quickly, spin the bottle in a circular motion for 10 seconds and stop to see a mini tornado in your bottle.

Lesson: When you spin the bottle, it creates a water vortex. The water is spinning around the center of the vortex because of centripetal force. Centripetal force is an inward force directing an object or fluid towards the center of its circular path. Examples of natural vortexes are tornadoes, hurricanes, and waterspouts.

Whoa. (via the Royal Society of Chemistry and the Science Photo Library)

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The simple discovery that a piece of wire mesh can stop a flame in its tracks saved the lives of thousands of miners.

This demonstration shows how a simple lamp made of gauze could contain the open candle flames that miners used before 1815. With the safety lamp, any potential explosions would stay contained and never escalate to dangerous levels (although mining remained an extremely dangerous occupation).

Watch the whole demo and hear the full story here.

One of the smoothest, most beautiful color changes I’ve ever seen.

The reaction is methoxymethyl deprotection of one of my agonists with concentrated HCl in acetonitrile as my solvent. The color change doesn’t happen in THF!

How To Make A Rocket For Less Than A Dollar

You can use sugar and kitty litter to make a rocket that shoots up over 2,300 feet (700 meters). And it cost less than $0.50 to make. Learn how: http://bit.ly/1G0hn8O

How to make homemade glowstick! Lukas Lebs #Creative #science #cool #glowstick #comedy #experiment #funny #family #food #news #weird #DIY

Materials: 1. Food Coloring 2. Liquid Dish Washing Soap 3. 3 Tablespoons of Warm Water 4. 1 Tablespoon of Dry Yeast 5. ½ cup of 20-volume hydrogen peroxide from a hair salon 6. Empty 16 ounce Plastic Bottle 7. Small Cup 8. Safety Goggles 9. Tray

Steps: 1. First, put on your safety goggles and place a tray in front of you. 2. Next, pour the hydrogen peroxide in the bottle. (Make sure to have an adult complete this step) 3. Then, add 8 drops of any food coloring of your choice in the bottle. 4. Next, add 1 tablespoon of liquid dish soap into the bottle and swish it to have the materials mix. 5. Then, combine the warm water and yeast together in a separate small cup and mix for 30 seconds. 6. Finally, place the bottle in the tray and pour the yeast water mixture into the bottle.

Lesson: While doing this experiment, foam appears having each tiny foam bubble filled with oxygen. The yeast acted as a catalyst or helper to remove the oxygen from hydrogen peroxide. If you touch the bottle, you notice that it is warm. That means your experiment made a reaction called exothermic reaction because it creates heat.