Learn why protons and neutrons stick together, how close they have to be in the atomic nucleus, and how the strong force accounts for mass.
Monthly Archives: February 2020
The atom is the unit of matter that identifies a chemical element. Here are 10 interesting atom facts for education and entertainment.
10 Interesting Atom Facts
Look up unfamiliar definitions in this math dictionary for kids. It covers arithmetic, algebra, geometry, statistics, and trigonometry.
Math Dictionary for Kids
The reaction between sugar and sulfuric acid is one of the simplest chemistry demonstrations and also one of the most spectacular. The chemical reaction causes the dehydration of sugar. This results in a growing, steaming black column of carbon that smells like a combination of caramel and rotten eggs. The […]
Carbon Snake Demo (Sugar and Sulfuric Acid)
The elephant toothpaste chemistry demonstration produces a steaming tube of foam that erupts like an elephant squeezing a giant tube of toothpaste. The classic demo isn’t appropriate for kids because it uses 30% hydrogen peroxide, but there is a safe, easy version, too. The kid-friendly elephant toothpaste demo uses ordinary […]
Kid-Friendly Elephant Toothpaste Demo
Several years ago, if you played a game of ping pong or table tennis, there was a real chance the ball could explode when hit or burst into flame from friction as it struck the table. Do you know why ping pong balls burn? Contrary to a popular myth, they […]
Why Ping Pong Balls Burn
The phrase “lightning never strikes the same place twice” means when something really bad (or really good) happens, it won’t happen again. Of course, that isn’t always true. It’s also a myth that lightning never strikes the same place twice. In the short term, lightning is more likely to follow […]
Can Lightning Strike the Same Place Twice?
Try one of these corny and cute chemistry pick up lines on your crush. You're sure to set the stage for chemical attraction!
Cute Chemistry Pick Up Lines
Have ever wondered how many zeros are in a million, billion, or trillion? Do you know how many zeros are in a vigintillion or a googol? Knowing how to write ordinary large numbers is useful for science or math class (or your bank account, if you are rich). Use your knowledge […]