This document discusses measurement concepts including length, mass, and volume. It defines length as how long an object is, mass as how heavy an object is, and volume as how much liquid a container can hold. It lists the common units used to measure each property, such as centimeters and meters for length, grams and kilograms for mass, and milliliters and liters for volume. An example question is provided to measure the length of a basketball court in meters.

1. Measurement
Length, mass and volume
What will we learn today?
• Comparing
lengths, masses, volumes.

2. Before we begin, let’s understand
some important concepts.

3. If we want to know how long is
the object,
we are finding its length.

4. If we want to know how long is
the object,
we are finding its length.
We can use a ruler or measuring tape
to find the length of the object.

5. If we want to know how heavy is
the object,
we are finding its mass.

6. If we want to know how much
liquid can a container hold,
we are finding its volume.

7. Here’s how we do it.
property units
length cm or m

8. Here’s how we do it.
property units
length cm or m
mass g or kg
gram kilogram

9. Here’s how we do it.
property units
length cm or m
mass g or kg
volume ml or l
millilitre litre

10. The length of the basketball court is ____.
a) 8m
b) 8cm
c) 8kg
d) 8 l

11. The length of the basketball court is ____.
a) 8m
b) 8cm
c) 8kg
d) 8 l

12. The length of the basketball court is ____.
a) 8m
b) 8cm
c) 8kg kg is for measuring mass.
d) 8 l l is for measuring mass.

13. The length of the basketball court is ____.
a) 8m
b) 8cm 8cm is too short.
c) 8kg kg is for measuring mass.
d) 8 l l is for measuring mass.

14. The length of the basketball court is ____.
a) 8m
b) 8cm
c) 8kg
d) 8 l

15. Are you ready to
try out the
questions?