Lab - Volume and Mass

Yesterday in Lab we learned a different way to find the volume (how much space an object takes up) of an object.  So far, students have found the volume by multiplying the length x width x height.  Today we learned about measuring the volume of an irregularly shaped object (ex. a marble) using water displacement.

Water Displacement Steps:

1) Measure the volume of the water in the graduated cylinder.
2) Record the volume in mL.
3) Tilt the graduated cycinder and gently slide the object to be measured into the graduated cylinder. (We don't want to lose any volume!)
4) Measure the volume again.
5) Record the volume with the object in as mL.
6) Subtract the old volume from the new volume.
7) The answer is the volume of the object.
8) Record answer in mL.  (ex. The volume of the marble is 5mL)

 This is to prepare students in calculating density.