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Weight Measurement Practice
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Weight Measurement Practice
At low tide, Talia, Mere and Oliver are packing safe research supplies for a rock-pool visit. Use grams (g) and kilograms (kg) to compare and calculate mass. Show your working where needed.
Read and compare mass
Use the information in each question. Remember: 1 kg = 1,000 g.
1.A spring scale has a dial marked from 0 kg to 5 kg. Its pointer is exactly halfway between 2 kg and 3 kg. What mass does it show?
- 2 kg
- 2.5 kg
- 3.5 kg
- 5 kg
2.A sealed sample jar has a mass of 650 g. Is that more or less than 1 kg? How many grams less?
3.Which two items are most likely to have a combined mass greater than 1 kg? Choose one pair.
- A pencil (8 g) and a biscuit (20 g)
- A full backpack (1.4 kg) and a notebook (300 g)
- A shell (35 g) and a pencil (8 g)
- A small jar (250 g) and a biscuit (20 g)
Pack the research kit
Use the object masses given in each problem. Think carefully about units before calculating.
4.Talia packs a 2 kg backpack and a 750 g lunch container. What is their total mass in kilograms and grams?
5.Mere's equipment bag has a mass of 3 kg. She removes a 850 g towel. What is the mass of the bag and equipment left, in grams?
6.Oliver estimates that a full water bottle has a mass of 50 g. A scale shows 500 g. Is his estimate reasonable? Explain using the scale reading.
7.Match each item to the more suitable unit for describing its mass.
- A small shell
- A loaded backpack
- A biscuit
- A large chilly bin
- kg
- kg
- g
- g
8.A bag of potatoes has a mass of 2.4 kg. Write this mass in grams.
9.The group can carry no more than 5 kg of supplies. Their kit weighs 3 kg 600 g. How much more mass can they add before reaching the limit?
10.Circle True or False: 1,250 g is the same mass as 1 kg 250 g.
TrueFalse
11.Create a sensible example of two rock-pool visit items whose masses add to exactly 1 kg. Write both masses and show the addition.
3 printable pages
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