Grade 3 Measurement Worksheets: Metric units of weight | Worsheets library - Free Printable

Let's solve this Grade 3 Measurement Worksheet step by step.

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Objective:

Fill in the proper unit (g for grams or kg for kilograms) for the weight of each object.
Hint: 1 kilogram = 1,000 grams

We’ll analyze each item based on real-world knowledge and typical weights.

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Step-by-step Analysis:

1. A sundae: 250 ___
- A sundae is a dessert, usually small and light.
- 250 grams is reasonable (about half a pound).
- Answer: 250 g

2. A hammer: 2 ___
- Hammers are heavy tools.
- 2 kilograms is realistic (a standard hammer weighs around 2 kg).
- Answer: 2 kg

3. A boy: 20 ___
- A young boy might weigh around 20 kilograms.
- 20 grams is way too light (that’s just a few paperclips!).
- Answer: 20 kg

4. An alarm clock: 450 ___
- A typical alarm clock is not very heavy — maybe like a small book.
- 450 grams is about half a kilo — makes sense.
- Answer: 450 g

5. A paintbrush: 150 ___
- A paintbrush is very light.
- 150 grams is reasonable (like a small bottle of water).
- Answer: 150 g

6. A picture frame: 1 ___
- A medium-sized wooden picture frame could weigh about 1 kilogram.
- But if it's small and lightweight, maybe less. Still, 1 gram is too light.
- So likely 1 kg.
- Answer: 1 kg

7. A bread: 680 ___
- A loaf of bread is typically around 600–800 grams.
- 680 grams is common.
- Answer: 680 g

8. A laptop: 4 ___
- Laptops weigh between 1 to 3 kg, but some larger ones can be up to 4 kg.
- 4 grams is impossible (lighter than a feather).
- Answer: 4 kg

9. A wheel: 10 ___
- A car wheel with tire is quite heavy.
- 10 kilograms is plausible (a typical wheel weighs around 10–15 kg).
- 10 grams is absurdly light.
- Answer: 10 kg

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✔ Final Answers:

| Object | Weight |
|------------------|---------------|
| A sundae | 250 g |
| A hammer | 2 kg |
| A boy | 20 kg |
| An alarm clock | 450 g |
| A paintbrush | 150 g |
| A picture frame | 1 kg |
| A bread | 680 g |
| A laptop | 4 kg |
| A wheel | 10 kg |

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Part 2: Draw something that weighs 1 gram and 1 kilogram

You need to draw two things:

- 1 gram: Very light! Examples:
- A paperclip
- A small candy (like a jellybean)
- A pinch of salt

- 1 kilogram: Heavier — about 1,000 grams.
- A liter of water
- A bag of sugar
- A small cat
- A large book

> Since you're drawing, here's what to sketch:
>
> - For 1 gram: Draw a paperclip or a jellybean.
> - For 1 kilogram: Draw a bag of sugar or a laptop (if you know it weighs ~1 kg).

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✔ Summary:

Completed worksheet answers:

- A sundae: 250 g
- A hammer: 2 kg
- A boy: 20 kg
- An alarm clock: 450 g
- A paintbrush: 150 g
- A picture frame: 1 kg
- A bread: 680 g
- A laptop: 4 kg
- A wheel: 10 kg

And draw:
- 1 gram: e.g., a paperclip
- 1 kilogram: e.g., a bag of sugar

Let me know if you'd like a printable version or help drawing these!