1 class periods of 60 minutes each
The student will calculate the density of a given object and place it in the right layer of the Earth by matching its density to a known quantity.
- substances to measure such as rocks, including high a low density rocks
- lightweight materials such as Styrofoam or a balloon to model air (roughly)
- tools to calculate mass and volume
- student sheet
- The student will be given a small object and the materials needed to calculate its density. After finding the mass and volume, the student will calculate density using d=m/v.
- Once the density is known the student will use that data and the Earth density chart to determine which layer of the Earth has the closest density to the object.
- Have students put the density they calculated for each substance on the board and make sure that they are reasonably accurate.
Scoring -- There are 4 parts to be evaluated.
First -- did the student find the right mass?
Second -- did the student find the correct volume?
Third -- did the student calculated density correctly?
Fourth -- did the student correctly interpret the chart and choose the correct layer of the Earth?
Lesson Design by Jordan School District Teachers and Staff.