1. Science Vocabulary
3 Week 8

2. Atoms
what all matter is made of

3. Compound
A substance made up of two or more elements chemically joined together into a molecule.

4. Density  
A measurement that is equal to the amount of mass per unit of volume.

5. Electrons
particles with negative electrical charges, surrounding the nucleus of an atom

6. Element
Any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter. 

7. Volume
is the amount of space an object occupies

8. Mass
measure of how much matter an object has.

9. Matter
Anything that takes up space and has mass.

10. Mixture
two or more substances blended, but not bonded together

11. Neutrons
The particles of the nucleus that have no charge.

12. Nucleus
The positively charged dense center of an atom.

13. Periodic table
A table that lists chemical elements in order of increasing atomic numbers.

14. Protons
A stable particle found in the nucleus of an atom with a positive charge.

15. Properties
a quality or trait of a substance or object