Physical Science

First, lets admit that there has been much more than a decade of contact.In the famous picture the MONA LISA there is what many describe as a flying disk in the upper left corner. We have , I believe always…
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The body is built up of many different things such as muscle and fat and water. The thing that gives people the ability to move is the nervous system. The nerves send electrical pulses through the body to tell each…
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Children are curious. That is a fact of life that children tend to want to know more about the world around them. Children are totally fascinated by all the things they see. If you have ever spent time with children,…
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The purpose of the lab and the information reported is to allow one to infer as to what the unidentified substance from the experiment. This lab is useful for teaching students to identify hydrates through finding percentage of mass in…
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Overview of Atoms Atoms are the smallest articles that comprises a chemical element. Each atom is made up of an electron cloud that surrounds a dense nucleus.Each nucleus consists of positively charged protons electrically neutral neutrons, the opposite of the…
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Oxygen is an element represented by the letter O. Oxygen’s atomic number is 8. The atomic weight of oxygen is 15.9994. The group number of oxygen is 16 and the group name of oxygen is Chalcogen. The period number of…
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Helium, He, is the second most abundant element in the universe. It is believed to have been created by the Big Bang, and it also the second lightest element (Hydrogen is the lightest). Helium is used all around you, whether…
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The electron pushing concept is referred to usually to electron donating or electron releasing concept.  It cannot be considered as a topic by itself because it is tightly related to the concept of electron withdrawing power.   When we talk about…
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According to Google, crystals are “a solid formed by the solidification of a chemical and having a highly regular atomic structure.” They do appear naturally in nature, but they can also be man-made. From rock candy to magnificent displays, crystals…
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Gold has been one of the most valuable substances on the planet for thousands of years. The ancient Egyptians described this precious metal in hieroglyphics as long ago as 2600 BC; one Egyptian pharaoh even said that gold “was more…
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