Physical Science

Helium is a chemical element, which appears in the periodic  table of elements as the second lightest element, following the chemical element hydrogen.  Helium is the first noble gas showing in the top left side of the periodic table. Helium…
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For many thousands of years, humans have known and valued the metallic element gold (Au).Too soft for use in making weapons or tools it was for its beauty and rarity that man searched for this metal. Gold’s atomic number of…
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Nitrogen, with the chemical symbol N, is a common element that makes up nearly 80% of the Earth’s atmosphere. It has an atomic number of 7, with five electrons in its outer shell. This leaves three unpaired electrons for bonding…
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Helium (atomic symbol He) is the second most abundant element in the universe after hydrogen. Along with hydrogen and lithium, helium is believed to have been created in the first three minutes of the universe’s existence. It is one of…
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A blue straggler star is a star that is hotter, hence bluer, than the other stars in a star cluster. Blue stragglers, an example of an exotic star, stand out in a cluster because most stars in a cluster are…
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Organic chemistry is that branch of chemistry which deals with carbon and hydrogen and their mutual bonds.  In addition to this basic discipline of chemistry, with the passage of time and with the development of the chemical science there were…
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The Specific Gravity (SG) of Helium is 0.138 at normal temperature and pressure (NTP). Helium is slightly more than 7 times lighter than air, which is why helium filled balloons rise into the atmosphere and float away. -Characteristics of Helium-…
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Nitrogen is one of the most common elements and it makes up nearly 80% of the Earth’s atmosphere. With its unique set of chemical properties, it is a critical component of life as we understand it. Understanding these chemical properties…
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Zinc is a metallic chemical element with the symbol Zn and atomic number 30. In non-scientific context, it is also known as spelter. In appearance, zinc is a blue-gret metal. It is moderately reactive and tarnishes easily if exposed to…
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Children love to create things and a lot of fun can be had at home by experimenting with various ingredients to produce a satisfying outcome whilst also engaging in a learning experience with your child. Creating a bouncy ball using…
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