1. Properties of Matter
SC.8.P.8.2: Differentiate between weight and mass recognizing that weight is the amount of gravitational pull on an object and is distinct from, though proportional to, mass. SC.8.P.8.3: Explore and describe the densities of various materials through measurement of their masses and volumes. SC.8.P.8.4: Classify and compare substances on the basis of characteristic physical properties that can be demonstrated or measured; for example, density, thermal or electrical conductivity, solubility, magnetic properties, melting and boiling points, and know that these properties are independent of the amount of the sample. SC.8.P.9.2: Differentiate between physical changes and chemical changes.

2. Mass vs Weight Newton’s 2nd Law: F = M x A
Mass: Amount of matter in a substance. Measured in GRAMS. Weight: Measure of the force of gravity on an object. Measured in NEWTONS. W=mg
Newton’s 2nd Law:
F = M x A

3. Properties of Matter: Density
The amount of MATTER in a certain VOLUME. Independent of the amount of the sample size!!

4. Properties of Matter: Thermal/ Electrical Conductivity
Conductor: allow for transfer through the free movement of electrons. Insulator: impede the free flow of electrons from atom to atom

5. Properties of Matter: Solubility
The ability of a substance to dissolve into another substance.
Solvent- liquid (VOLUME)
Solute- solid
Solution- combination of solvent and solute
↑temp = ↑RATE of reaction but still DOES NOT change mass

6. Properties of Matter: Magnetism

7. Properties of Matter: Melting/Boiling Point
Independent of the amount of the sample.

8. Physical/Chemical Changes in Matter
Physical Change – Changes the appearance of the substance; can get original substances back.
Chemical Change – Changes the composition of the substance; cannot get original substances back.

9. Properties of Matter: pH

10. Law of Conservation of Mass (LCM)
Mass is never created nor destroyed; only rearranged!
FINITE! – All atoms formed in stars from lighter elements.

11. Carbon Cycle
Carbon gets cycled between living and nonliving things.