SAS Curriculum - Density #11
- 3. Introduction to Density A substance’s density is the measure of the mass of material within a certain volume . (amnt of space taken up) The mass (amnt of particles) is affected by how tightly packed the molecules are within the space.
- 4. Introduction to Density A B A and B = SAME VOLUME (same size)
- 5. Introduction to Density A B A and B = SAME VOLUME (same size) A B A and B = DIFFERENT MASS (amount of particles; different substance) Different Densities
- 6. Introduction to Density C D C and D = DIFFERENT VOLUME (different size) but same substance
- 7. Introduction to Density C D C and D = DIFFERENT VOLUME (different size) but same substance Same Densities- particles are packed the same way
- 8. Density #11 Go to: Learning Point Select: Feb. 27 th – Mar. 2nd Select: SAS Curriculum #11 hyperlink Type in: eagles
- 10. Table 1: Data for objects 1-4 Subtract Final Volume from Initial Volume Object # Mass (g) Initial Volume (mL) Final Volume (mL) Object Volume (mL) 1 5 2 5 3 5 4 5
- 11. Subtract Final from Initial Table 2: Data for Objects 5-11 Divide Mass by Object Volume Object # Mass (g) Initial Volume (mL) Final Volume (mL) Object Volume (mL) Density (g/mL) RESULTS (S= sink; F=floats) Water Ethano Gasoline Sea H 2 O 5 6 7 8 9 10 11
- 12. Subtract Final from Initial Table of Densities Substance Density (g/mL) aluminum 2.7 copper 8.9 gasoline 0.68 gold 19.3 ice 0.917 iron 7.8 lead 11.3 seawater 1.025 wood (average value) 0.8
- 13. Subtract Final from Initial Table 3: Liquid Densities Mass divided by Volume = Density Liquid Color of Liquid Volume (mL) Mass (g) Density (g/mL) Water Light Blue 5 2. Ethanol Dark Blue 5 3. Gasoline Dark Green 5 4. Seawater Light Green 5
- 14. Introduction to Density D ue today sometime. Have an enjoyable weekend!