1. Density

2. Which do you think would have the greater Mass? Volume? Why?
1 kg of feathers
1 kg of rock

3. Mass Amount of matter (stuff) inside an object. Measured in grams (g)
Does not change with gravitational changes

4. Volume The amount of space an object takes up.
Measured in milliliters (ml) or cubic centimeters (cm3)

5. Density
Amount of “stuff” in a given space.

6. Proof that water and ice have different densities

7. Density Density is the ratio of mass to volume
If the volume stays the same and the mass increases the density will increase
If the mass stays the same and the volume increases the density will decrease

8. To find the density 1- Find the mass of the object
2- Find the volume of the object
3- Divide
Density = Mass g
Volume cm³
ALWAYS REMEMBER UNITS!

10. Units for density g/cm3 or g/ml
M = mass V= volume D = density
Formula:
M = D x V V = M / D D = M / V

11. Change Mass AND Keep Volume Same Which container has more density?
Ways to Affect Density
Change Mass AND Keep Volume Same
Increase the mass  increase density
Decrease the mass  decrease in density
Which container has more density?

12. Change Volume AND Keep Mass Same Which container has more density?
Ways to Affect Density
Change Volume AND Keep Mass Same
Increase the volume  decrease density
Decrease the volume  increase density
Which container has more density?

13. What 2 ways will INCREASE density?

14. If you have 2 or more substances,
the MORE dense substance will be on bottom
The LESS dense substance will be on top

15. To find density:
Find the mass of the object
Find the volume of the object
Divide : Density = Mass - Volume
If the mass of an object is 35 grams and it takes up 7 cm3 of space, calculate the density.