Introduction to density1a fall 2013
- 1. Ch You will Need: se ang atsCalculator 1)Pencil, Colored Pencil, … ing 2) Introduction to Density – .. Bookshelf-1 page 2 sides 3) One Blank sheet of Paper – Put your name on it 4)Identifying Volume Lab – Due Tomorrow
- 2. We are changing seats…… Pick new jobs: Manager, Materials Manager, Oral Presenter, Timer Designer Update Log #2 – Timer Designers – Log on
- 3. You will Need: 1)Pencil, Colored Pencil, Calculator 2) Introduction to Density – Bookshelf-1 page 2 sides 3) One Blank sheet of Paper – Put your name on it 4)Identifying Volume Lab – Due Tomorrow
- 4. Test #1 Takes and Retakes – Schedule w/me – Review side board for date opportunities 98/140 or below- diff. test, no notes Update Log #2 – Timer Designers – Log on
- 5. 1. The metric unit for mass is? 2. Which form of matter has particles that are free to move independently and collide frequently? 3. Which variable is usually is represented by the x-axis in a data table? 4. Give 3 equivalent unit labels for volume. 5. Physical changes to matter do not change what?
- 6. 6. When CO2(s) changes state directly into a gas without becoming a liquid, we call this______________. 7. Which form of matter has both crystalline and amorphous structures? 8. Plant leaves lose water through evaporation – physical or chemical? Why? 9. Proteins are made from amino acids – physical or chemical? Why? 10. Food is digested – physical or chemical? 11. A repeating pattern of atoms forms a ___________ ____________?
- 7. 12. What method would you use to find the volume of a block of wood? 13. What are 3 equivalent formulas for finding the volume of a cube? 14. What determines the state of matter a substance is in? 15. When will a substance float in water? 16. What is the vocabulary word for finding the volume of an irregularly shaped object?
- 8. 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.
- 9. Blank Sheet Same Volume (amount of space) Different Volume
- 10. Blank Sheet 1. Same Volume 2. Same Particle Arrangement 3. Same Density
- 11. Blank Sheet 1. Same Volume 2. Same Particle Arrangement 3. Same Density 1. Different Volume 2. Same Particle Arrangement Mass to Volume 3. Same Density Ratio is the same
- 12. Blank Sheet 1. Same Volume 2. Same Particle Arrangement 3. Same Density 1. Same Volume 2. Diff. Particle Arrangement 3. Diff Mass 4. Diff Density
- 13. A B A and B = SAME VOLUME (same size)
- 14. A B A and B = SAME VOLUME (same size) A B Dif fe ren t De nsi ties A and B = DIFFERENT MASS (amount of particles; different substance)
- 15. C D C and D = DIFFERENT VOLUME (different size) but same substance
- 16. Sa par me D sam icles ens t e w are i ti e C D ay pac ked - s the C and D = DIFFERENT VOLUME (different size) but same substance
- 17. 1. VOLUME – amount of space • mL, cm3, cc 2. MASS – amount of particles Any gram unit 3. DENSITY – how the particles are packed- RATIO • g/mL , g/cm3, g/cc, kg/m3
- 18. 1. Identifying Volume – Due Tomorrow at the beginning of class 2. Test #1 Signed & Corrected – Due Thur. 3. Introduction to Density due tomorrow at the end of class.