Matter+Terms

[|Video]

__ Matter Notes __ 1. An element is a pure substance that cannot be broken down into simpler substances.

2. An atom is the basic particle from which all matter is made.

3. Chemical Bond is a force of attraction between two atoms. Chemical bonds are due to one atom’s attraction for the electrons of another atom.

4. Molecules are two or more atoms held together by chemical bonds.

5. Two Kinds of mixtures: (homo = same) (hetero = different) Homogeneous mixtures are so evenly mixed that you can’t see the different substances. The different substances in heterogeneous mixtures can be seen.

6. Matter Terms Concept Map – add examples

7. Pure Substances/Mixture/Element/Compound/Atom/Molecule Describe each picture using the words above.

8. Pure Substances/Mixture/Element/Compound/Atom/Molecule Describe each picture using the words above.

9. Chemical formulas of molecules. In chemical formulas, letters represent the kind of atom and subscripts tell how many.

10. Compounds are combinations of elements. The calcium carbonate in snail shells is made of calcium, carbon, and oxygen.

11. Different kinds of matter have different properties which can be used to identify them.

12. Physical Properties Texture Color Temperature Shape Luster Hardness Malleable (ability to be shape by hammering) Ductile (shape into wire) Viscosity (how fluid) Solubility (ability to dissolve) Density = Mass X Volume State (solid, liquid, gas, plasma) Temperature of state changes

http://planetsave.com/2012/12/22/hawaiian-islands-are-dissolving-and-will-disappear-study-finds/