Surface and volume density word problems

The  exercise appears under the Geometry Math Mission. This exercise applies density concepts to context problems.

Types of Problems
There are three types of problems in this exercise:


 * 1) Find the answer: This problem describes a situation involving density. The student is asked to find the correct solution and write it in the space provided.Savdp1.png
 * 2) Select the correct answer: This problem describes a situation involving density. The student is asked to select which answer is correct from a multiple choice listing of statements.Savdp3.png
 * 3) Select all that apply: This problem describes a context driven problem involving density. The student is asked to select all options that are true about the situation from a multiple-select list.Savdp4.png

Strategies
Knowledge of the density equations and basic facts about density are encouraged to ensure success on this exercise.
 * 1) Density comes in units of mass divided by volume.
 * 2) On the blimp problems, multiply the amount of helium carried by 1.1, subtract the mass of the blimp, then divide by the mass of a passenger.
 * 3) With volume held constant, for things to sink they must be more dense than water. To float, they are less dense than water.
 * 4) The information about city density can be found in other resources, but people divided by area is the "density" concept here.

Real-life Applications

 * 1) The problems in this particular exercise are context-driven real-life applications of density.