What are the changes of state?
Answer: Anything that has mass and occupies space is called matter. A matter is made up of tiny particles. These... View Article
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What are sound waves?
Answer: A sound is a mechanical wave that propagates through a medium as a vibration. It can propagate through a... View Article
What is the reflection of sound waves?
Answer: Bouncing back of soundwaves from the surface of solid or liquid is known as a reflection of sound. Reflection... View Article
What are metals and non-metal?
Answer: Metals and nonmetals are two separate types of materials that we encounter every day. Metals and nonmetals are the... View Article
Write an introduction to the modern periodic table.
Answer: The periodic table is a list of all the elements known to man, arranged in order of increasing atomic... View Article
What is the Periodic Table?
Answer: The periodic table is a list of all the elements known to man, arranged in order of increasing atomic... View Article
What are the lens formula, magnification and power of the lens?
Answer: A spherical mirror is one that is cut from a spherical surface and has the shape of a portion... View Article
What is the mirror formula? What is magnification by spherical mirrors?
Answer: A spherical mirror is one that is cut from a spherical surface and has the shape of a portion... View Article
What is the spherical mirror?
Answer: A spherical mirror is one that is cut from a spherical surface and has the shape of a portion... View Article
What are spherical lenses?
Answer: Spherical lenses are made by combining two spherical transparent surfaces. There are two kinds of spherical lenses in general.... View Article
What are the chemical properties of metals and non-metals?
Answer: A metal in chemistry is an element that creates positive ions readily and has metallic bonds. Metals are sometimes... View Article
What are the physical properties of metals and non-metals?
Answer: A metal in chemistry is an element that creates positive ions readily and has metallic bonds. Metals are sometimes represented... View Article
What is the variation?
Answer: Differences in the genetic makeup or phenotypic of diverse species are known as variations. Mutation, recombination during gamete development,... View Article
Write a note on the formation of twins.
Answer: The transfer of behavioural qualities from parents to offspring, or from one generation to the next, is referred to... View Article
What is evidence of evolution?
Answer: Evolution is defined as a change in a species’ physical traits over many generations as a result of natural... View Article
Write a note on human evolution.
Answer: Humans come in a wide range of sizes and shapes across the globe. The most popular technique of identifying... View Article
What are heredity and evolution?
Answer: Heredity and evolution are two of biology’s most important and fundamental divisions, and they are linked via inheritable characteristics.... View Article
What are the properties of quadrilateral Properties?
Answer: A quadrilateral is a plane figure that has four sides or edges, and also have four corners or vertices.... View Article
Write a note on quadrilaterals.
Answer: A quadrilateral is a plane figure that has four sides or edges, and also have four corners or vertices.... View Article
What are the properties of kites?
Answer: A kite is a quadrilateral that has 2 pairs of equal-length sides and these sides are adjacent to each... View Article
