Capacity
& Mass Activity Centres
Activity A
Capacity—Lentils
1. Estimate the capacity of all the containers
(Record your estimate.)
2. Carefully pour the lentils into one of the
containers.
3. Carefully pour the lentils from the
container into a measuring container.
4. Record your results.
5. Repeat until you have measured the capacity
of each container.
6. Write the capacities in order from least to
greatest.
Activity B
Mass—light items
1. Assemble the scale.
2. Estimate the mass (weight) of a pig. (Record your estimate.)
3. Use the balance scale to find the weight in
grams. Place the pig on one side and a
weight on the other side. Record your
results.
4. Choose 2 other small items to estimate and
weigh in the same way.
Activity C
Capacity—Water
1. Estimate the capacity of all the
containers. (Record your estimate.)
2. Fill up the container with water from the
tap. Stop where you see the tape.
3. Carefully pour the water from a container
into a measuring container.
4. Record your results.
5. Repeat until all containers are measured.
6. Write all of the capacities in order from
least to greatest.
Problem Solving D
Mass—Grizzly Bear
The average mass
of a grizzly bear is about 360 kg. About
how many grade 3 children together have the mass of a grizzly bear. (1 kg = about 2 pounds)
Show your
thinking.
Problem Solving E
Capacity--Making
Juice
Jan needs to add
5L of water to her frozen juice. The can
for adding the water only holds ¼ of a litre.
How many cans of water does Jan need to make the juice?
Show your
thinking.
Bonus: Jan has $4.
Each can of frozen juice cost $1.15.
If Jan used 3 cans of frozen juice would she have enough money? Would she get any change?
Show your
thinking.
Problem Solving F
Capacity—Pool
Party
Raj has 12 friends
coming for a pool party. He thinks 2
glasses of pop will be enough for each guest.
How many litres of pop should he buy?
Show your
thinking.
Bonus: Raj has $10.
A 2L bottle of pop costs $1.49.
Will he have enough money to buy the pop he needs? Will he get any change?
Show your
thinking.
Extra Activity
Mass--Beans
Hold a bean (or
more) in your hand. About how many do
you think it would make 1 kilogram?
(Record your estimate.)
Make a plan and
carry it out to check your estimate.
Record the steps
you will take to do this.
Other Activity
Capacity—Popcorn
Make a container
using paper that you believe will hold 1 litre of popcorn.
You may use paper,
scissors, tape/glue and a ruler.
Think about how
many centicubes would make up 1 litre.
Think about how much popcorn would fill a litre.
When you have made
your container. Try to fill it with 1
litre of popcorn. Put the popcorn back
and make a new container that is closer to 1 litre. Fill the container with 1 litre of popcorn
again. Now you may eat the popcorn.
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