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Science Words

1.- Element: a basic building block of matter; a pure substance that cannot be broken down into anything simpler.

Example1

Example2: Periodic Table of Elements

2.- Compound: a chemical combination of two o more elements into a single substance.

Example1: Chemical Compound

Example2: Fire is a chemical compound

3.- Atom: the smallest unit of an element that still has the properties of the element.

Example1: Diagram of an atom

Example2: Model of an atom

Example3: Atomic Bomb

4.- Proton: a particle with a positive charge in the nucleus of an atom.

Example1

Example2

Example3: Proton-Proton Chain

5.- Neutron: an uncharged particle in the nucleus of an atom.

Example1

Example2: Definition of Neutron

Example3

6.- Electron: a particle with a negative charge moving around the nucleus of an atom

Example1

Example2

  

7.- Nucleus: the dense center part of an atom.

Example1

Example2

8.- Molecule:  group of more than one atom joined together that acts lia a single particle.

Example1 Molecule

Example2 Water Molecule

Example3 Spiral Molecule