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Nuclear Physics

Particle

A particle is the name given to a very small object which has features like size and mass. 

All the matter in the Universe is made of particles.

An illustration of large overlapping bubbles with different images inside. The centre is an atomic structure. Bottom left is a sphere with a positive symbol. Upper left is three cartoon stars. In the middle at the top is a sphere with a negative symbol. Upper right is a graphic of the Earth. Bottom right is a tree with lines representing its roots.
This work by The Schools' Observatory is licensed under All rights reserved