3-2a

**__Time Length__**
 * Density Notes/WS ** <---Previous Assignment **//- Next Assignment--->media type="custom" key="6581727" //**
 * 2 Days

Watch & __copy__ the notes from the videos
 * __Tutorial Videos__ **
 * [|Understanding the Units of Density]
 * [|How to Manipulate Equations (Important!)]
 * [|How to Solve Density Problems]

// Read these. These are just for a quick reminder. You do not need to copy them. //
 * __Notes__ **

Density is found by taking the mass and dividing by the volume. Common units for density are **g/mL or g/cm3**.
 * Density = __Mass/__****Volume**

This same equation can be solved to find the mass if both density and volume are known. The common unit for mass is **g**.
 * Mass = Density x Volume**

This same equation can be solved to find volume if both density and mass are known. Common units for volume are **mL** for liquids and irregular solids and **cm3** for regular solids.
 * Volume = __Mass__** / **Density**

// Perform the following calculations, showing work, the correct answer, and proper units. //
 * __Worksheet__ **

1. What is the density of a wood block with a mass of 450 g and a volume of 75 cm3?

2. What is the density of a liquid that has a mass of 740 g and a volume of 50 mL?

3. What is the density of a egg with a mass of 480 g? When placed into a beaker with 300 mL of water the water level rises to 380 mL.

4. What is the density of a wood block if the mass is 250 g and the sides of the block measure 20 cm x 15 cm x 10 cm?

5. What is the mass of a piece of copper, if copper has a density of 8.9 g/cm3 and a volume of 672 cm3?

6. What is the volume of water in a beaker if the mass of the water is 670 g and the density of water is 1.1 g/mL?

7) What is the density of an object with a mass of 5 g and when placed in a graduated cylinder with 20 mL of water, raises the water level to 85 mL?

8) What is the mass of an object with a volume of 5 mL and a density of 4 g/mL?

// If you finish the assignment early, you //__// must //__ // work on the site below. // We have not covered conversions yet, so assume all the problems say grams for mass and milliliters for volume. [|Clicky Clicky]
 * __Required Extra Practice__ **