Study Guide 2/2 G05 ~ Mathematics
Unit
3
LESSON 20: MASS
Mass measures the quantity of matter (particles) in an object. For example, a gold bar is the same size as a box of Smarties (53 mm × 118 mm × 8 mm) but has a mass of 1 kg. This means the gold bar has a higher particle density, or more particles, than the box of Smarties. It is important to remember that mass and weight are not the same, even though mass is used to describe weight. The weight of an object is determined by gravity, while mass is a constant determined by its number of particles. Out in space, where there is no gravity, a brick will have no weight, but its mass will be the same in space and on earth. Mass is measured in gram (g), kilogram (kg) and ton (t). In Grade 5, we only work with gram and kilogram.
You worked with mass in Grades 3 and 4. Revise what you know about mass.
How do you measure mass? We use different measuring instruments to determine mass. Measuring instruments
Bathroom scale
Kitchen scale 7
© Impaq
