- Definition of mass: The amount of matter in an object.
- Units of measurement for mass: Grams (g), kilograms (kg), etc.
- Tool/instrument to find mass: Balance or scale.
- Definition of volume: The amount of space an object occupies.
- Unit of measurement for liquid volume: Milliliters (mL) or liters (L).
- Unit of measurement for solid volume: Cubic centimeters (cm³) or cubic meters (m³).
- Formula to calculate density: Density = Mass / Volume.
- Finding the density of a regular shaped object:
a. Volume = length × width × height = 5 m × 4 m × 2 m = 40 m³.
b. Density = mass / volume = 300 g / 40 m³ = 7.5 g/m³.
- Finding the density of an irregular shaped object:
a. Volume of rock = final volume - initial volume = 23 mL - 20 mL = 3 mL (or 3 cm³).
b. Density = mass / volume = 23 g / 3 cm³ ≈ 7.67 g/cm³.
Parent Tip: Review the logic above to help your child master the concept of finding density worksheet.