3-3a

**Density Lab 2** <---Previous Assignment - Next Assignment--->media type="custom" key="6581729" **__Time Length__**
 * 1 Day
 * __Instructions__ **


 * 1) //Everything except the triple beam balances will be put back at the end of class.//
 * 2) //Make a new page on your wiki titled "3-3 Density Lab" and put your answers on it.//
 * 3) //Make a table with 4 columns and a lot of rows (you can add more later if you need to)//
 * 4) // On the left describe the object //
 * 5) // In the second column write the mass //
 * 6) // In the third column write the volume //
 * 7) // In the fourth column write the density //
 * 8) // Round all answers to two decimals //
 * 9) //End the lab with a description of how you calculated density.//
 * 10) //Calculate the density of as many objects as you can in// //one class period////.//
 * 11) //If you finish your bag, get another (trade with other groups)//
 * 12) //Use the notes below for help//
 * 13) //If you find the Mystery Object with a density of 7.19// //g/mL you get 10 bonus points//
 * 14) //If you find the other Mystery Object with a density of 9.21 g/mL you get 5 bonus points.//
 * 15) //You may only get one of the bonuses//

//read these notes to know how to calculate density.//
 * __Notes__ **
 * Density of Irregularly Shaped Objects**
 * Calculate the mass in grams with the triple beam balance
 * Calculate to the nearest hundredth (estimate between the lines)
 * Example 234.43 g
 * Calculate the volume in mL by displacement in a graduated cylinder (dropping things in water)
 * Put an amount of water in a graduated cylinder that will submerge the object completely
 * Note the original volume
 * Drop the object in
 * Note the new volume (take the reading from the bottom of the [|meniscus] )
 * Calculate to the nearest tenth (estimate between the lines)
 * Example 43.3 mL
 * D=m/v
 * (unit is g/mL)
 * Round to 2 decimals)
 * Density of Regularly Shaped Objects**
 * Calculate the mass the same as before
 * Calculate the volume using the equation LxWxH
 * Measure in cm
 * Calculate to the nearest tenth (estimate between the lines)
 * Example 9.4 cm
 * Calculate the density the same as before