Notes / Handout – Pollution of Air and Water – Chapter-18 – Science – NCERT / CBSE – Class VIII Air Air consists of a mixture of gases. By volume, about 78% of this mixture [Read More …]
When fried food items like potato chips are kept in open containers / exposed to air, they get spoilt. The taste and smell of such items change and become inedible. Because, the oil and fats in fried food items like chips react with oxygen present in air and get oxidised. This is called rancidity. [Read More …]
What is Cell? Why is a Cell called the Fundamental Building Block of a Living Organism? What is Cell? How are the bodies of humans and other living organisms built up? In other words, what [Read More …]
What is matter? What is Matter? The answer to this question is here in this Science Section! Everything that has mass and volume (occupies space) in the universe is known as matter. Matter is made [Read More …]
Why is Pluto not a Planet? There were nine planets in the solar system till the year 2006. Pluto was the farthest planet from the Sun. In 2006, the International Astronomical Union (IAU) adopted a [Read More …]
Notes / Handout – Stars and the Solar System – Chapter – 17 – Class-8 – CBSE Celestial Bodies The stars, the planets, the moon and many other objects in the sky are called celestial [Read More …]
We have seen the suffix “ology” with many words related to certain specializations. The term “ology” means “study of a subject” , “a branch of knowledge”. There are many fields in science and medicine that [Read More …]
Why are the Polar Regions colder than the equator? We know that the temperature in the polar regions (north and south poles) is at the sub-zero level and most of the regions are covered by [Read More …]
Notes / Handout – Crop Production and Management – Chapter – 1 – Science – NCERT / CBSE – Class VIII Food We get energy from our food We get the food from plants or [Read More …]
How is glass made? Glasses are part of our life. Have you ever wondered about the materials from which they are made of? Do you know that glasses are made from sand? Yes! It is [Read More …]
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