Need-to-Know Vocabulary
1. PARTICLES – one of the extremely small parts that make up matter
2. ATOMS – the smallest part of an element that still has the same properties of the element
3. MOLECULES – the smallest particles of a compound that still has the properties of that compound
4. MASS – the amount of matter in a solid, liquid, or gas
5. VOLUME – the amount of space an object takes up
6. MATTER – anything that has mass and takes up space
7. COMPOUND – a type of matter made of two or more elements
8. ELEMENTS – the ingredients that make up all other substances, they can not be broken down into any other substance
9. PROTONS – an atomic particle with a positive charge, the number of protons determines the element
10. NEUTRONS – an atomic particle that has no charge
11. NUCLEUS – the center of an atom where the protons and neutrons are stored
12. ELECTRONS – an atomic particle with a negative charge; electrons circle the nucleus in an atom
13.CONDUCTORS – a substance, body, or device that readily moves heat, electricity, sound, etc.
14. EVAPORATION – the physical change that occurs when a liquid is heated and it becomes a gas (hot shower creates steamy mirror)
15. CONDENSATION – the physical change that occurs when a gas in
cooled and it returns to its liquid form (steam on a mirror begins to drip)
16. MIXTURE – a combination of materials that can be easily
separated, each material remains the same
17. SOLUTION – a combination of materials, one material usually
dissolves, or the materials completely combine and can not be
easily separated
18. PHYSICAL CHANGE – a change is some properties of matter without
forming a different kind of matter
19. CHEMICAL CHANGE – One or more types of matter change into other
types of matter with different properties
Jones' Classroom Blog 