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How it works

nuclear energy

The protons and neutrons of an atom release nuclear energy when they break apart. Every atom contains a lot of energy. The forces that hold the atom together are the strongest forces that scientists know of. ... read more

how does a calculator work

Calculators translate numbers into binary code to come up with an answer. ... read more

what is an animal

Animals are living creatures. They include very small creatures such as dust mites and very large creatures such as whales. Animals are multi-cellular organisms that eat food to survive. They cannot get energy from the sun like plants do. Most animals can move on their own. ... read more

plant movements and adaptations

Plant Movements ... read more

what is a plant

Plants and animals are living things, or organisms. Plants make it possible for all the other living things to exist on planet Earth. While plants are similar to animals in some ways, they are unlike animals in many more ways. Plants, like animals, are made up of cells. ... read more