Science for Kids

physical-quantities-measurements

Physical Quantity

Physical quantity variants The magnitude of everything that can be measured over time, length, mass, area, volume, density and strength which are variants of physical quantity. The fundamental physical quan...
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Measurements

Measurements Definition Our activities and actions are based on measurements. For example, when someone asked "what time is it?” We are referring to a form of measurements, in this case the time to know how ...
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Physics work formula and definition

    Physics Work Definition There are some words whose meaning in everyday life is not the same as in physics, one of which is the concept of work. In everyday use the word "work" is found...
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Nuclear waste (radioactive waste)

Effects of Nuclear waste on Ecology New applications of radioactivity and handling of radioactive elements have caused radioactive waste which causes, air, soil and water pollution. Such nuclear wastes ha...
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Radioactivity, nuclear fission and nuclear fusion

What is Radioactivity Matter can go through physical and chemical changes .  An example for a physical change is the transformation of water into the gaseous state or solid form (ice and steam, respectiv...
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Effects of air pollution

Effects of air pollution should not be evaluated solely. It has an interaction with both soil and water. You cannot isolate the events that happen in the air of those occurring in the water or on land, since ...

Natural resources

Definition of Natural resources In nature there are many things: plants, animals, water, air, earth, minerals ... All these elements utilized for living and meeting human needs are called natural resources. ...
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Importance of water

Water is an important resource with any life. You can find water in many parts of the earth: in the oceans and seas, rivers and lakes, ponds, etc... That water accounts for three quarters of the planet's surf...
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Conservation of natural resources

Conservation of natural resources;  But How? Nature provides a wealth of resources that are used for food, construction materials, for clothing, toys, footwear and also to humans and other living things to c...
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Biodiversity

What is Biodiversity? Biodiversity is the immense variety of life forms that have existed on our planet. The main contributor of this great biodiversity is the evolution of creatures on Earth.  Types of Bio...