Science Quiz Questions For Kids With Answers

The Universe combines three types of substance: Normal Matter, Dark Matter, and Dark Energy. Normal matter covered atoms that makeup stars, planets, human beings, and every other visible object in the Universe. Dark matter is made from particles that do not absorb, reflect, or emit light, so it is not easy to detect by observing electromagnetic radiation. And Dark energy is an unknown form of energy that allows to expand Universe very quickly over time, rather than slow down.

The majority of elements in the universe are gases. The first three most abundant elements in the universe are hydrogen, helium, and oxygen. Two types of planets exist terrestrial, made of metals and rocky like Earth, and Jovian, which are gaseous.

Hydrogen is the lightest gas and element and is the most abundant in the universe.

With 8 million tons, Chile has the world’s largest known lithium reserves. That puts the South American country ahead of Australia (2.7 million tons), Argentina (2 million tons), and China (1 million tons). Within Europe, Portugal has smaller quantities of valuable raw material.

Magnesium is the lightest metallic element and abundantly available in the earth’s crust and seawater. As a result, magnesium is the third most commonly used structural metal, following steel and aluminum.

Helium is safer than Hydrogen. That is because helium and Hydrogen are both lighter than air. But Hydrogen is highly inflammable and incredibly dangerous. On the other hand, helium atoms are bigger and diffuse less rapidly through a balloon, and they won’t burn or react in any way.

Osmium is the world’s heaviest material on earth, weighing twice as much as lead per teaspoon. It is a chemical element in the platinum group metals, basically it used as alloys in electrical contacts and fountain pen nibs.

Lithium, Sodium, and Potassium are less dense than water, so they can easily float on the water’s surface. As a result, the metals move about the water’s surface, and fizz as hydrogen gas is produced.

By far, Chile, the world’s leading copper producer, produced an estimated 5.7 million metric tons of copper in 2020. In second place is Peru, with an estimated copper mine production of 2.2 million metric tons in the same year.

We are 3D creatures living in a 3D world, but our eyes can show us only two dimensions.

Quarks, the smallest particles in the universe, are far smaller and operate at much higher energy levels than the protons and neutrons in which they are found.

The smallest thing that we can see with a ‘light’ microscope is about 500 nanometers. A nanometer is one billionth of a meter. So the smallest thing that you can see with a light microscope is about 200 times smaller than a hair’s width. Bacteria are about 1000 nanometers in size.

A large number of metals is heavier than iron. These include gold, lead, mercury, uranium, plutonium, molybdenum, osmium etc.

The heaviest naturally stable element is uranium, but physicists have used accelerators to synthesize larger, heavier elements over the years. For example, in 2006, physicists in the United States and Russia created element 118.

Petroleum, coal, natural gas and Orimulsion are the four fossil fuel types.

There are four types of natural sources of energy: Solar Energy, geothermal energy, wind energy, and hydropower energy from flowing water.

Solar radiation is the biggest source of energy on Earth’s surface.

All these science quiz questions for kids help you to enhance your kids general knowleadge and make them upto date with latest general knowleadge.