The characteristics of an atom
By: Lydia Black
The word "atom" means "indivisible" and was first coined by the ancient Greeks over two thousand years ago, as a term for the smallest particles in the Universe.Today the term "atom" refers to particles that, although incredibly small, are not actually indivisible. Rather, they...
The difference between exothermic and endothermic chemical reactions
By: Dawn R. Cole
All chemical reactions start with the reactants having some sort of energy activation that results in the bonding of the two material's molecules and forms a new product. The most common form of energy is heat; either the chemical reaction will cause the blended mixture...
6th grade chemistry experiments
By: Michael Frissore
In sixth grade I was forced to come up with something for a science fair. I wasn't a very crafty child. I had plenty of book smarts and was getting A's and B's in all my classes, but when it came to making something, it...
Perception of Time Relativity Perception Time Sims God Time Travel Space
By: greyeyesgabriel
Time is a relative concept, even biblically speaking. Let us think about this for a minute. God created the Heavens and the Earth in 7 days; however, my Bible does not have a time frame for how long that "day" was, just that day and...
The ideal gas law
By: Reynold Conger
The volume of a gas changes with temperature, pressure and the number of molecules in the container. Early workers used experimental data to derive Charles Law and Henri's Law. They recognized that these laws were imperfect in that they did not take into account the...
By: Rex Trulove
To understand the formation and cause of black holes, we must first understand some of the theories that surround them. It does little good, however, to become too technical or the information is useless to the average person. This is too often a problem in...
How to make fake blood
By: Currie Jean
Be it Hallowe'en or a youtuber's B horror movie, realistic blood is a must. Nothing wrecks a good costume or film experience like bright red ketchup, red paint, or a simple corn-syrup-and-food-coloring mixture. It's got to be dark and somewhat thick to look convincing, and...
By: Earl King
ALTERNATING CURRENT (AC) ANDDIRECT CURRENT (DC):A SIMPLE EXPLANATION The simplest explanation would be dc current flows in one direction. Alternating current flows first one way then the other. But this really doesn't teach us anything. If we are going to spend time looking at how...
By: Marc Phillippe Babineau
Candles have been around for centuries, and they will probably be here for just as long as mankind is walking this time-bomb of a planet. When electricity fails, batteries can be a mans' best friend. But when the batteries die out, and there are none...
How to make sugar combust
By: Ernest Capraro
Sugar is a repository of chemical energy. Your body breaks it down enzymatically to release that energy, powering most everything you do. Such a potent fuel, one would half expect it to burn easily. But then, if you take a teaspoon of sugar and stick...

 

1 172 173 174 175 176 547
CHOOSE YOUR SCIENCES 360 TOPIC: