| · | To understand the properties of density |
| · | To calculate volume, mass and density |
| · | To understand what percent deviation is |
| · | To calculate percent deviation |
| Part A: Volume | |
| 1. | What is the definition of volume ? |
| a) | What do you think is the key word in that definition (one word)? |
| 2. | What happens to the volume of an object if it is heated? |
| 3. | What is the formula for volume (scroll to bottom of site)? |
| a) | What is the volume of this object (show your work)? Measure it with a ruler in centimeters . |
| b) | How should the units be? |
Finding the Volume of an irregular shaped object | |
| · | An object that can not be measured by a ruler |
| 6. | Briefly describe the steps to calculate volume of an irregular shaped object ( the water displacement method): |
| 7. | Practice: |
| a. | What is the volume of the water in this picture ? |
| b. | What is the volume of water after the object is placed in it in this picture ? |
| c. | What is the volume of the object (volume before object – volume after object was placed in) |
| Part B: Mass | |
| 8. | What is the definition of mass ? |
| a) | What do you think the key word is in the definition? |
| 9. | How do you calculate the mass of an object? Pay close attention to the units that are used, too. |
| a) | Practice calculating mass (scroll about half way down)? |
| Part C: Density | |
| 10. | What is the definition of density ? |
| 11. | What is the formula for density (write all of them)? Remember the triangle method! It helps! |
| 12. | Practice Problems (show work): |
| a) | |
| What is the density of a 75 g block of wood measuring 12 cm x 8 cm x 9 cm? | |
| 1. | What’s the mass: |
| 2. | What’s the volume: |
| 3. | What’s the density (calculate it) |
| b) | |
| What is the mass of a 49 cm3 object with a density of 63 g/cm3? | |
| 1. | What’s the volume? |
| 2. | What’s the density? |
3. What’s the mass (calculate it)? | |
| c) | |
| What is the volume of a 17 kg solid with a density of 0.05 kg/cm3? | |
| 1. | What’s the mass? |
| 2. | What’s the density? |
3. What’s the volume (calculate it)? | |
| · | Here are the answers! And explanations . |
