Chemistry Experiments |Chemistry Demos

In my chemistry class we finish the school year with a unit called "The Chemistry of Coffee" where we explore the chemical reactions involved in roasting coffee and discover how roasting green coffee beans into different types of roasts produces different compounds and...

This is one of my favorite science toys! I keep a mini ping pong ball cannon in my class at all times because it is a fun way to get the students attention. And, at every STEM Magic Show I start with the ping pong ball cannon to kick things off with a bang! The cannon...

Below is the entire lesson plan for the lab experiment that I use with my students to perform the "Gold Penny Lab". We have a friendly classroom competition with this lab to see who can make the most convincing gold penny and the winners, as determined by student votes...

 As a college student studying science, I clearly remember the day my physics professor walked out in front of the class to perform the classic "Table Cloth Trick" demonstration. He had a small dining table set with a nice tablecloth, fine china dishes and wine glasses...

What would happen if you poured liquid nitrogen in a hot tub? Well, I asked myself that same question and decided I should try it to find out. The results were just as I expected - there was a whole lot of cloud formations developing all around the house and I ended up...

Recently Forbes Magazine reported that global production of plastic bottles had reached 1 million bottles per minute! That is a staggering figure. They went on to report that 91% of those bottles are never recycled. Imagine the ecological impact of all that plastic end...

Whenever I get out the liquid nitrogen to do experiments and science magic shows I always have to end by eating something that has been soaked in the liquid nitrogen! When the liquid nitrogen vaporizes in my mouth and "smoke" pours out of my face, people start to pay a...

Erasable ink pens have been around for a long time but the newest generation of the pens hold a very interesting secret - they don't actually erase the ink, the ink just turns invisible when you rub it with the eraser! And, while it appears that the ink magically disap...

Gallium is an amazing element. It is a metal but it is liquid below 85.58 deg F (29.76 deg C) which means it has some very unique properties. Gallium (buy it here) has some other credits to it's name besides just being an amazing liquid metal. In 1871, a Russian scient...

Gallium is one of the craziest metals on the periodic table. It is shiny and very hard, just like you might expect a metal to be but unlike the other metals, it actually melts at 85.58 degrees F (29.76 degrees C). This means that it will actually melt in your hand! Bec...

Gel fuel has been used for years as a way to keep food warm in a chafing tray, as a heating oil, and as an emergency survival fuel. It is often referred to as canned heat or Sterno, which is a brand name for methanol gel. Recently I was picking up gel fuel for a fondue...

Sulfur Hexafluoride gas is one of the craziest gases we have ever gotten our hands on! This gas is five times more dense than the air we breathe which causes it to behave differently than other gases. For example, if you breathe in SF6 it will make your voice get very...

A classic chemistry class demonstration is to hold bubbles filled with methane gas or propane gas and light the bubbles on fire. Flames shoot from the teacher's hands and, magically, the teacher is not burned by the flaming inferno in his hand. But don't try this at ho...

There are hundreds of ways a person can build a flame thrower but I thought I would make a simple one using a biological organism instead of the typical fuels one might see. Lycopodium clavatum is a club moss that grows abundantly in the northern regions of Canada, Nor...

Instructions for the Exploding Eggs Demonstration and Experiment:

How to remove the inside of an egg

Supplies

  • Eggs

  • Needle or Pin

  • Paper clip

Start by making a small hole at one end of the egg with a needle or pin. Then make another hole on the opposite end....

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Craig Beals  |  Craig@BealsScience.com 

© 2019 Beals Science, LLC | United States

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