Physical Science

We see and experience chemical reactions everyday, whether it is from the rust on your mailbox, cellular respiration, or having to start your car. A chemical reaction is the process of one or more atoms that are split apart and…
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Baking soda is scientifically known as “sodium bicarbonate” or, if you lived a century or more ago – bicarbonate of soda. The chemical formula for baking soda is NaHCO3, where Na is the sodium ion, and HCO3 is the bicarbonate…
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Are you looking for some hot chemistry gifts for Christmas 2010?  Some kids are naturally drawn to chemistry and others are terrified of the word alone.  If we present chemistry as what it is, a combining of substances and matter…
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It was with awe when Apollo 11 landed on the moon and the world watched Neil Armstrong take a step and say, “This is one small step for man, one giant leap for mankind.” The moon has always been mysterious….
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The valence bond theory is a quantum mechanics theory that, like the molecular orbitals theory, tries to explain the chemical bonding between atoms.  Each of these theories have different perspectives on how the bond forms.  The valence bond theory is a…
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 Searched for, killed for, hoarded, worshiped, used as money , used to decorate man and building, this shiny yellow metal has fascinated mankind since long before the ancient Egyptians first began mining it. From gold objects made by Cro-Magnon man…
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Molecular orbital theory is a theoretical method in chemistry that tries to give an explanation to the chemical bond in terms of molecular orbitals formation that are formed by the addition and subtraction of two atomic orbital functions.  This method…
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Space can inspire the imagination like nothing else. If you have ever looked up into the night sky and seen a full moon, it seems like space goes on forever. On Earth, the most distinctive feature in the night sky…
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Salt map mixture is used to make hills and valleys on a topographical map or 3D map. It’s an excellent mixture to use for school science projects. You can also use this salt map mixture for making box dioramas. Below…
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Some say he was a man born out of time, a man born too soon, that his inventions changed the world, and that he was an unappreciated genius who wanted to give free energy to people. Nikola Tesla (July 10,…
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