1. DENSITY
7.P.2B.2 Use mathematical and computational thinking to describe the relationship between the mass, volume, and density of a given substance.

2. Density
the mass of a substance per unit of volume

3. It changes with the substance’s phase change (solids, liquids, and gases) because of the difference in the particle arrangement in each phase.
volume & density of a substance depends on its phase or state of matter.
Density

4. Particle arrangements of

6. Density
composition of a substance does not change when one measures mass and volume.
Physical property

7. Mass It is measured in grams (g) Using basic mathematical computations
Triple beam balance
Mass

9. Volume It is measured in milliliters (mL)
Using basic mathematical computations
Liquid displacement method – graduated cylinder

12. 4 lines for each 50 mL

13. Each line is 10 mL

14. 9 lines for each 50 mL

15. Each line is 5 mL

16. 9 lines for each 100 mL

17. Each line is 10 mL

18. STEPS FOR WATER DISPLACEMENT METHOD
Record the initial measurement on the cylinder.
Insert the object(s) into the cylinder.
Record the final measurement on the cylinder.
Final measurement – initial measurement = volume (mL)