Tag: reaction

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Why do ice cubes crack in drinks?

Here's an easy experiment: Take ice straight from the freezer and drop it in a glass of water. Listen and watch for the crack. Why does it do that? Professor Martyn Poliakoff of the Periodic Table of Videos team e...

5 Fun Science Experiments for Kids (w/ Grover!)

Science experiments + a cute and furry blue monster that we know and love = YES. Hosts Annie Colbert and Matt Silverman have clearly helped discover the formula for making an instant video fa...

Mimosa pudica & rapid plant movement

This is a mimosa pudica, also known as the sensitive plant or a touch-me-not. It is known for its rapid plant movement, moving quickly into a closed, sleep position when touched, shaken, blown at, etc, only to open a...

A red hot ball of nickel is dropped in a cup of water

A red hot ball of nickel is dropped in a cup of water, resulting in a most unexpected reaction, in this demonstration of the Leidenfrost effect by Carsandwater. via Laughing Squid.

The Color Changing Milk Experiment

This experiment was featured a few months ago in a video that had a variety of DIY science tricks. But it’s such a fun and easy activity to do that it bears repeating: Get some milk, di...

Exploding elements: Alkali metals in water

Now this is an effective way for kids to remember the names of elements… have the elements explode! Five out of the six Alkali metals react with air and water: Lithium (Li), Sodium (Na)...

(NH4)2Cr2O7! Ammonium Dichromate Volcano

(NH4)2Cr2O7! Or… an Ammonium Dichromate Volcano! With some heat, these (highly toxic) orange crystals will thermally decompose as they release heat, nitrogen, water and green dichromium (III) oxide ash.  Via ...