Measuring Weight (Kilograms and Grams) Worksheets - Free Printable

Let's solve the problem step by step.

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Understanding the Task

The worksheet is about estimating weight using grams (g) and kilograms (kg). It provides:

- A brief explanation:
- Grams (g): Used for very light objects (e.g., a popcorn kernel weighs about 1 gram).
- Kilograms (kg): Used for heavier objects (e.g., a one-liter bottle of water weighs about 1 kilogram).

We are to choose the best estimate for each object or animal shown in the images.

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Step-by-Step Solutions

#### 1. Carrot
- Options:
- 18 grams
- 4 kilograms
- 8 kilograms

✔ Answer: 18 grams
→ A small carrot is light, not heavy enough to be measured in kilograms. 18 grams is reasonable.

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#### 2. Football
- Options:
- 20 grams
- 300 grams
- 500 grams

✔ Answer: 300 grams
→ A standard football weighs around 400–450 grams, so 300 grams is the closest reasonable estimate among the choices.

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#### 3. Pig
- Options:
- 900 grams
- 9 kilograms
- 90 kilograms

✔ Answer: 90 kilograms
→ A small pig (like a young piglet) can weigh around 90 kg. 900 grams is only 0.9 kg (like a small cat), too light. 9 kg is still very small for a pig.

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#### 4. Ice Skates
- Options:
- 160 grams
- 18 kilograms
- 3 kilograms

✔ Answer: 3 kilograms
→ A pair of ice skates typically weighs around 2–4 kg. 160 grams is too light (less than a bag of sugar). 18 kg is way too heavy.

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#### 5. Cat
- Options:
- 250 grams
- 7 kilograms
- 57 kilograms

✔ Answer: 7 kilograms
→ An average house cat weighs about 4–5 kg, so 7 kg is a reasonable estimate. 250 grams is just over half a pound — too light. 57 kg is like a large dog or small bear.

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#### 6. Frog
- Options:
- 2 grams
- 300 grams
- 3 kilograms

✔ Answer: 2 grams
→ A small frog weighs only a few grams. 300 grams is about 10 ounces (a large apple), and 3 kg is 6.6 pounds — way too heavy for a frog.

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#### 7. Notebook
- Options:
- 100 grams
- 1 kilogram
- 100 kilograms

✔ Answer: 100 grams
→ A typical notebook weighs around 100–200 grams. 1 kg is too heavy (like a big textbook), and 100 kg is absurd.

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#### 8. Feather
- Options:
- 1 gram
- 50 grams
- 1 kilogram

✔ Answer: 1 gram
→ A single feather is extremely light — about 1 gram is accurate. 50 grams is like a small apple, and 1 kg is 1,000 grams — impossible for a feather.

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#### 9. Camel
- Options:
- 100 kilograms
- 60,000 grams
- 6,000 grams

✔ Answer: 60,000 grams
Wait! Let’s convert:
- 60,000 grams = 60 kilograms
- 6,000 grams = 6 kilograms
- 100 kg = 100,000 grams

But a camel weighs about 400–600 kg, so none of these options are correct?

Wait — let’s check:
- 60,000 grams = 60 kg → Still too light for a camel
- 100 kg = 100,000 grams → Too light
- 6,000 grams = 6 kg → Way too light

Hmm — this seems problematic.

But wait — perhaps there’s a typo in the options?

Alternatively, maybe it's a baby camel? But even a baby camel weighs more than 100 kg.

Wait — perhaps the option meant 600,000 grams? That would be 600 kg.

But as given:
- 100 kg = 100,000 g
- 60,000 g = 60 kg
- 6,000 g = 6 kg

None are realistic.

But 60,000 grams = 60 kg — maybe it's a very small camel? No, that’s still too light.

Wait — could it be a mistake? Or perhaps the image shows a small animal?

Wait — looking again at the image: it's clearly a camel, which is large.

But 60,000 grams = 60 kg is about the weight of a large dog, not a camel.

So likely, the correct answer should be 600,000 grams, but that's not an option.

Wait — maybe the intended answer is 60,000 grams, assuming the camel is very small?

No — that doesn't make sense.

Wait — perhaps the option says "60,000 grams", which is 60 kg, but that's still too low.

But let’s compare:
- A baby camel weighs around 40–50 kg at birth.
- So 60 kg is plausible for a newborn camel.

So maybe the camel in the picture is a newborn.

Then 60,000 grams = 60 kg is acceptable.

✔ Answer: 60,000 grams

Even though it's on the high side, it's the closest and only reasonable choice.

Note: 60,000 grams = 60 kg → yes, possible for a young camel.

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✔ Final Answers:

| Item | Best Estimate |
|------|----------------|
| 1. Carrot | 18 grams |
| 2. Football | 300 grams |
| 3. Pig | 90 kilograms |
| 4. Ice Skates | 3 kilograms |
| 5. Cat | 7 kilograms |
| 6. Frog | 2 grams |
| 7. Notebook | 100 grams |
| 8. Feather | 1 gram |
| 9. Camel | 60,000 grams (60 kg) |

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Summary of Reasoning

- Use grams for small/light things (feather, carrot, frog).
- Use kilograms for heavier things (cat, pig, camel, skates).
- Convert between units when needed:
→ 1 kg = 1000 grams
- Estimate based on real-world knowledge.

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✔ Final Answer Key:
1. 18 grams
2. 300 grams
3. 90 kilograms
4. 3 kilograms
5. 7 kilograms
6. 2 grams
7. 100 grams
8. 1 gram
9. 60,000 grams

Let me know if you'd like this formatted as a printable answer sheet!