CLASS 4TH MATHS WORKSHEET LESSON 8.

Weigh It, Pour It (Preparatory Stage Math)

Concepts • Computational Skills • Problem-Solving & Modeling • 10 questions each • 40% Easy, 40% Average, 20% Challenging • One toggle shows Answer + Solution

Worksheet A: Concepts

Easy

Q1. Which unit is better to weigh a watermelon: grams (g) or kilograms (kg)?

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Answer

Kilograms (kg).

Solution

Large, heavy items are measured in kg; grams suit small, light items.

Easy

Q2. Which unit is better to measure cough syrup: millilitres (ml) or litres (l)?

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Answer

Millilitres (ml).

Solution

Small liquid amounts use ml; 1000 ml make 1 l for larger quantities.

Easy

Q3. Which is heavier: 1 kg salt packet or 500 g daal packet?

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Answer

1 kg salt packet.

Solution

1 kg = 1000 g, which is greater than 500 g.

Easy

Q4. Which container has more capacity: a jug (1 l) or a glass (250 ml)?

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Answer

Jug (1 l).

Solution

1 l = 1000 ml; 1000 ml is more than 250 ml.

Average

Q5. Tick the items likely less than 1 kg: 6 bananas, 5 potatoes, 10 tomatoes, 15 onions (estimate only).

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Answer

6 bananas; 10 tomatoes (likely); 15 onions (could be around or above). Accept estimates.

Solution

Use prior experiences weighing at markets; small sets often weigh under 1 kg, depending on size.

Average

Q6. Choose the best measure for milk from a vendor: 250 ml cup or 5 l can, if buying one small glass of milk.

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Answer

250 ml cup.

Solution

Small servings are in hundreds of ml; 5 l is for bulk quantity.

Average

Q7. Which balance side will tilt down: a 1 kg salt packet vs a 100 g soap bar?

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Answer

The 1 kg salt side.

Solution

Heavier side moves down; 1 kg is much heavier than 100 g.

Average

Q8. Arrange from light to heavy: eraser (~10 g), soap (100 g), salt packet (1 kg).

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Answer

Eraser → Soap → Salt packet.

Solution

10 g < 100 g < 1000 g builds unit sense and ordering.

Challenging

Q9. A bottle is 1 l. Select which sets will fill it exactly: (A) 2×500 ml, (B) 4×250 ml, (C) 9×100 ml, (D) 10×100 ml.

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Answer

(A), (B), and (D).

Solution

1 l = 1000 ml; 2×500=1000; 4×250=1000; 10×100=1000; 9×100=900 (not full).

Challenging

Q10. Sort by capacity need (small to large): teaspoon, cup, mug, bucket, drum (water storage idea).

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Answer

Teaspoon → Cup → Mug → Bucket → Drum.

Solution

Order by typical volume use from millilitres to many litres.

Worksheet B: Computational Skills

Easy

Q1. 500 g + 500 g equals how many kilograms?

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Answer

1 kg.

Solution

500 g + 500 g = 1000 g; 1000 g = 1 kg.

Easy

Q2. 250 ml + 250 ml equals how many litres?

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Answer

0.5 l (or 500 ml).

Solution

250 + 250 = 500 ml; 1000 ml = 1 l, so this is half a litre.

Easy

Q3. Make 1 kg using 250 g packets: how many packets are needed?

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Answer

4 packets.

Solution

4 × 250 g = 1000 g = 1 kg.

Easy

Q4. Make 1 l using 100 ml bottles: how many bottles are needed?

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Answer

10 bottles.

Solution

10 × 100 ml = 1000 ml = 1 l.

Average

Q5. Balance puzzle: How many 250 g packets balance one 500 g packet on the other pan?

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Answer

2 packets.

Solution

2 × 250 g = 500 g; equal weights keep the balance level.

Average

Q6. Fill-in: 1 kg = __ g; 1 l = __ ml.

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Answer

1000 g; 1000 ml.

Solution

Basic unit equivalences: kilo-to-gram and litre-to-millilitre.

Average

Q7. A sweet shop packs 1 kg in 100 g boxes. How many boxes make 1 kg?

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Answer

10 boxes.

Solution

10 × 100 g = 1000 g = 1 kg; links grouping to total mass.

Average

Q8. Choose the correct comparison: 800 g ☐ 1 kg (use <, >, =).

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Answer

< (less than).

Solution

800 g is less than 1000 g (1 kg).

Challenging

Q9. A 1 l bottle is filled using 10 ml droppers. How many droppers are needed in all?

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Answer

100 droppers.

Solution

1 l = 1000 ml; 1000 ÷ 10 = 100 equal drops.

Challenging

Q10. A sweet shop must pack 2 kg in 250 g boxes. How many boxes are needed in total?

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Answer

8 boxes.

Solution

2 kg = 2000 g; 2000 ÷ 250 = 8 boxes of equal mass.

Worksheet C: Problem-Solving & Modeling

Easy

Q1. At the vegetable market, which is a better unit to weigh 2 cucumbers: g or kg?

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Answer

Grams (g) or small kg fractions (by g).

Solution

Small produce amounts are commonly weighed in grams to be precise.

Easy

Q2. The dosing cup is 10 ml. About how many cups to fill a 100 ml bottle?

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Answer

10 cups.

Solution

100 ÷ 10 = 10 equal measures; builds partitioning idea.

Easy

Q3. Which side tilts down on a balance: 250 g tea leaves vs 1 kg salt packet?

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Answer

The 1 kg salt side tilts down.

Solution

Heavier mass tilts; 1 kg is heavier than 250 g.

Easy

Q4. Choose the better container for 1 l of milk: 1 l bottle or 250 ml cup?

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Answer

1 l bottle.

Solution

A 1 l bottle matches the required capacity exactly.

Average

Q5. Create a simple tally for household packets: flour 10 kg (1 bag), rice 5 kg (1 bag), salt 1 kg (2 packets). Which total mass is greatest?

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Answer

Flour 10 kg is greatest.

Solution

Totals: flour 10 kg; rice 5 kg; salt 2×1 kg=2 kg; compare magnitudes.

Average

Q6. How many 500 ml bottles fill a 2 l jug exactly?

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Answer

4 bottles.

Solution

2 l = 2000 ml; 2000 ÷ 500 = 4 equal parts.

Average

Q7. Estimate which is heavier: a wooden chair or a 1 l water bottle. Choose one and explain briefly.

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Answer

Wooden chair is heavier.

Solution

1 l water ≈ 1 kg; a chair typically exceeds several kilograms.

Average

Q8. Match to a convenient unit: eraser [__], geometry box [__] (choose g or kg).

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Answer

Eraser: g; Geometry box: g (hundreds of g), not kg.

Solution

Both are light classroom items; grams provide appropriate scale.

Challenging

Q9. A sweet shop needs 1 kg packs using 50 g boxes. How many boxes per kg, and how many for 3 kg?

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Answer

20 per kg; 60 for 3 kg.

Solution

1000 ÷ 50 = 20; multiply by 3 for 3 kg → 60 boxes.

Challenging

Q10. A leaking tap drips 10 ml per minute. About how much water is wasted in 1 hour? in 1 day (estimate)?

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Answer

1 hour: ~600 ml; 1 day: ~14.4 l.

Solution

60 min × 10 ml = 600 ml; 24 h × 600 ml ≈ 14400 ml = 14.4 l; connects rates to capacity.