Lesson 12.2: Filling, Pouring, and Everyday Capacity Word Problems
Solve addition and subtraction capacity problems, compare container volumes, and calculate liquid sharing.
⏱️ Reading Time: 15 mins
• ❓ 50 Interactive Practice Questions
🌟
Real-Life Story: Capacity and Volume
During a community marathon, race volunteers staff water stations. They mix electrolyte powder into a 20-litre dispenser. Runners drink 14 litres and 500 mL during the first hour, leaving 5 litres and 500 mL for the remaining runners.
💡 Core Mathematical Concepts: Filling, Pouring & Liquid Word Problems
Focus areas: Capacity addition, subtraction, liquid displacement, sharing liquids.
| Concept / Term | Mathematical Definition | Everyday Example |
|---|---|---|
| Combining Liquid Volumes | Add litres to litres and millilitres to millilitres; regroup 1,000 mL into 1 L | 1 L 700 mL + 2 L 600 mL = 3 L 1,300 mL = 4 L 300 mL |
| Subtracting Liquid Volumes | Borrow 1 L (1,000 mL) when millilitres cannot be subtracted directly | 5 L 200 mL - 2 L 800 mL = 4 L 1,200 mL - 2 L 800 mL = 2 L 400 mL |
| Liquid Displacement | When an object is submerged in water, the water level rises by the exact volume of the object | A pebble dropped into 100 mL of water raises level to 125 mL (volume = 25 mL) |
| Comparing Capacity | Determining how much more one container holds than another | A 5 L bucket holds 3 L more than a 2 L bottle |
🔍 Practical Classroom & Everyday Examples
Example 1: Unit Alignment in Calculations
Convert mixed units to millilitres before doing complex multi-step math (e.g., 3 L 40 mL = 3,040 mL).
Example 2: Estimating Capacities
A standard bathtub holds ~150 L; a cup holds ~250 mL; an eye dropper holds ~1 mL.
⚠️ Watch Out! Common Mistakes to Avoid
Common Error: Writing 3 L 50 mL as 3,500 mL
Correction: 3 L 50 mL is 3,050 mL! 3,500 mL is 3 L 500 mL.
Common Error: Assuming wider containers always hold more
Correction: A short, wide container can hold the same volume as a tall, narrow cylinder.
🎯 Quick Self-Check Challenge
A fish tank holds 45 litres of water. It currently contains 38 litres and 250 mL. How much more water is needed to fill the tank completely?
Answer & Explanation:
45 L - 38 L 250 mL = 44 L 1,000 mL - 38 L 250 mL = 6 litres and 750 mL.
🎯 Key Learning Takeaways
Master Capacity and Volume fundamentals.
📄 Printable Worksheets (5 Available)
Download ready-to-print PDFs for offline student practice with separate parent/teacher answer keys.
G3-M-CH12-WS05
A4 • 15 Qs
Capacity and Volume — Worksheet 5
Millilitres, Litres & Container Liquid Math (Community Health Clinic Syrups)
G3-M-CH12-WS04
A4 • 15 Qs
Capacity and Volume — Worksheet 4
Millilitres, Litres & Container Liquid Math (Bakery Vanilla Extract Storage)
G3-M-CH12-WS03
A4 • 15 Qs
Capacity and Volume — Worksheet 3
Millilitres, Litres & Container Liquid Math (Greenhouse Plant Irrigation)
G3-M-CH12-WS02
A4 • 15 Qs
Capacity and Volume — Worksheet 2
Millilitres, Litres & Container Liquid Math (Science Lab Solution Prep)
G3-M-CH12-WS01
A4 • 15 Qs
Capacity and Volume — Worksheet 1
Millilitres, Litres & Container Liquid Math (School Sports Day Hydration)
✍️ Lesson Practice Questions (50 Questions)
Solve these real-world challenges online, test your understanding, and reveal instant step-by-step explanations.
1
Short Answer
Hard
2 Marks
An aquarium filter pumps 15 litres of water every minute. How many litres of water will the filter process in 1 hour?
A
900 litres
B
600 litres
C
750 litres
D
1,500 litres
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
900 litres
Step-by-Step Explanation:
1 hour = 60 minutes. 60 × 15 litres = 900 litres.
2
Short Answer
Hard
2 Marks
A teapot holds 1 litre 800 mL of tea. Grandma pours four 250 mL cups of tea for guests. How much tea is left in the teapot?
A
800 mL
B
600 mL
C
1,000 mL
D
750 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
800 mL
Step-by-Step Explanation:
Poured = 4 × 250 mL = 1,000 mL (1 L). Remaining = 1,800 mL - 1,000 mL = 800 mL.
3
Short Answer
Hard
2 Marks
A tall, narrow glass and a short, wide bowl both hold exactly 500 mL of juice. How is this possible?
A
Capacity depends on total interior 3D volume, not simply the height of the container
B
One of them must be leaking
C
The tall glass always holds more
D
Liquids shrink in bowls
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Capacity depends on total interior 3D volume, not simply the height of the container
Step-by-Step Explanation:
Volume depends on length, width, and height. A wider base compensates for shorter height.
4
Short Answer
Hard
2 Marks
Why does dropping a solid stone into a graduated cylinder filled with water cause the water level to rise?
A
The solid stone takes up space (volume), displacing an amount of water exactly equal to the stone's own volume
B
The stone dissolves water
C
The stone makes water heavier
D
Because stones have water inside
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
The solid stone takes up space (volume), displacing an amount of water exactly equal to the stone's own volume
Step-by-Step Explanation:
Matter takes up space. Submerging an object displaces liquid equal to the object's physical volume.
5
Short Answer
Medium
1 Mark
Sam reads a measuring jug from above looking downward and records 400 mL. At exact eye level, the liquid actually sits at 350 mL. What caused Sam's inaccurate reading?
A
Parallax error caused by looking from an angle rather than directly at eye level with the liquid meniscus
B
The measuring jug expanded
C
Water evaporates instantly
D
Digital jugs are required
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Parallax error caused by looking from an angle rather than directly at eye level with the liquid meniscus
Step-by-Step Explanation:
Looking down at an angle causes parallax error, making the liquid level appear higher than it actually is.
6
Short Answer
Medium
1 Mark
A student writes: '2 litres and 5 millilitres in mL is 2,500 mL.' What is the student's error?
A
2 L 5 mL is 2,005 mL; 2,500 mL represents 2 L 500 mL
B
2 L 5 mL is 250 mL
C
2 L is 200 mL
D
There is no mistake
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
2 L 5 mL is 2,005 mL; 2,500 mL represents 2 L 500 mL
Step-by-Step Explanation:
5 mL occupies the ones place, with zeroes in hundreds and tens: 2,000 + 5 = 2,005 mL.
7
Fill in the Blanks
Medium
1 Mark
How many 200 mL cups are needed to completely empty a full 1-litre bottle?
A
5 cups
B
4 cups
C
6 cups
D
10 cups
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5 cups
Step-by-Step Explanation:
1 L = 1,000 mL. 1,000 ÷ 200 = 5 cups.
8
Fill in the Blanks
Medium
1 Mark
Find the missing capacity: 3 L 250 mL + [ ? ] mL = 4 L
A
750 mL
B
650 mL
C
850 mL
D
700 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
750 mL
Step-by-Step Explanation:
4 L = 4,000 mL. 4,000 - 3,250 = 750 mL.
9
Short Answer
Medium
1 Mark
A bottle contains 2 litres of apple juice. If four children share the juice equally, how many millilitres does each child receive?
A
500 mL
B
400 mL
C
250 mL
D
600 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
500 mL
Step-by-Step Explanation:
2 L = 2,000 mL. 2,000 mL ÷ 4 = 500 mL per child.
10
Short Answer
Medium
1 Mark
A watering can holds 6 litres of water. A gardener uses 2 L 400 mL for roses and 1 L 800 mL for ferns. How much water remains in the can?
A
1 L 800 mL
B
2 L 200 mL
C
1 L 600 mL
D
2 L 000 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
1 L 800 mL
Step-by-Step Explanation:
Total used = 2 L 400 mL + 1 L 800 mL = 4 L 200 mL. Remaining = 6 L - 4 L 200 mL = 1 L 800 mL.
11
Short Answer
Medium
1 Mark
At the Community Health Clinic Syrups, staff pour 5 cups of water, each holding 300 mL. What is the total volume of water poured?
A
1500 mL (1 L)
B
1300 mL
C
2000 mL
D
750 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
1500 mL (1 L)
Step-by-Step Explanation:
5 × 300 mL = 1500 mL.
12
Multiple Choice
Easy
1 Mark
A measuring jug contains 1 litre and 450 mL of orange juice. How many total mL is this?
A
1,450 mL
B
145 mL
C
1,045 mL
D
14,500 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
1,450 mL
Step-by-Step Explanation:
1 L = 1,000 mL. 1,000 + 450 = 1,450 mL.
13
Multiple Choice
Easy
1 Mark
Which metric unit is most appropriate for measuring the capacity of a medicine dose spoon?
A
Millilitres (mL)
B
Litres (L)
C
Kilolitres (kL)
D
Grams (g)
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Millilitres (mL)
Step-by-Step Explanation:
Small liquid doses (like cough syrup) are measured in millilitres.
14
Multiple Choice
Easy
1 Mark
Convert 1500 mL into litres and millilitres:
A
1 L 500 mL
B
15 L
C
2 L
D
0 L
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
1 L 500 mL
Step-by-Step Explanation:
1500 mL = 1 L and 500 mL.
15
Multiple Choice
Easy
1 Mark
How many millilitres (mL) are in 4 litres (L)?
A
4,000 mL
B
400 mL
C
40,000 mL
D
40 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
4,000 mL
Step-by-Step Explanation:
1 litre = 1,000 mL. 4 × 1,000 = 4,000 mL.
16
Short Answer
Hard
2 Marks
An aquarium filter pumps 15 litres of water every minute. How many litres of water will the filter process in 1 hour?
A
900 litres
B
600 litres
C
750 litres
D
1,500 litres
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
900 litres
Step-by-Step Explanation:
1 hour = 60 minutes. 60 × 15 litres = 900 litres.
17
Short Answer
Hard
2 Marks
A teapot holds 1 litre 800 mL of tea. Grandma pours four 250 mL cups of tea for guests. How much tea is left in the teapot?
A
800 mL
B
600 mL
C
1,000 mL
D
750 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
800 mL
Step-by-Step Explanation:
Poured = 4 × 250 mL = 1,000 mL (1 L). Remaining = 1,800 mL - 1,000 mL = 800 mL.
18
Short Answer
Hard
2 Marks
A tall, narrow glass and a short, wide bowl both hold exactly 500 mL of juice. How is this possible?
A
Capacity depends on total interior 3D volume, not simply the height of the container
B
One of them must be leaking
C
The tall glass always holds more
D
Liquids shrink in bowls
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Capacity depends on total interior 3D volume, not simply the height of the container
Step-by-Step Explanation:
Volume depends on length, width, and height. A wider base compensates for shorter height.
19
Short Answer
Hard
2 Marks
Why does dropping a solid stone into a graduated cylinder filled with water cause the water level to rise?
A
The solid stone takes up space (volume), displacing an amount of water exactly equal to the stone's own volume
B
The stone dissolves water
C
The stone makes water heavier
D
Because stones have water inside
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
The solid stone takes up space (volume), displacing an amount of water exactly equal to the stone's own volume
Step-by-Step Explanation:
Matter takes up space. Submerging an object displaces liquid equal to the object's physical volume.
20
Short Answer
Medium
1 Mark
Sam reads a measuring jug from above looking downward and records 400 mL. At exact eye level, the liquid actually sits at 350 mL. What caused Sam's inaccurate reading?
A
Parallax error caused by looking from an angle rather than directly at eye level with the liquid meniscus
B
The measuring jug expanded
C
Water evaporates instantly
D
Digital jugs are required
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Parallax error caused by looking from an angle rather than directly at eye level with the liquid meniscus
Step-by-Step Explanation:
Looking down at an angle causes parallax error, making the liquid level appear higher than it actually is.
21
Short Answer
Medium
1 Mark
A student writes: '2 litres and 5 millilitres in mL is 2,500 mL.' What is the student's error?
A
2 L 5 mL is 2,005 mL; 2,500 mL represents 2 L 500 mL
B
2 L 5 mL is 250 mL
C
2 L is 200 mL
D
There is no mistake
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
2 L 5 mL is 2,005 mL; 2,500 mL represents 2 L 500 mL
Step-by-Step Explanation:
5 mL occupies the ones place, with zeroes in hundreds and tens: 2,000 + 5 = 2,005 mL.
22
Fill in the Blanks
Medium
1 Mark
How many 200 mL cups are needed to completely empty a full 1-litre bottle?
A
5 cups
B
4 cups
C
6 cups
D
10 cups
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5 cups
Step-by-Step Explanation:
1 L = 1,000 mL. 1,000 ÷ 200 = 5 cups.
23
Fill in the Blanks
Medium
1 Mark
Find the missing capacity: 3 L 250 mL + [ ? ] mL = 4 L
A
750 mL
B
650 mL
C
850 mL
D
700 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
750 mL
Step-by-Step Explanation:
4 L = 4,000 mL. 4,000 - 3,250 = 750 mL.
24
Short Answer
Medium
1 Mark
A bottle contains 2 litres of apple juice. If four children share the juice equally, how many millilitres does each child receive?
A
500 mL
B
400 mL
C
250 mL
D
600 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
500 mL
Step-by-Step Explanation:
2 L = 2,000 mL. 2,000 mL ÷ 4 = 500 mL per child.
25
Short Answer
Medium
1 Mark
A watering can holds 6 litres of water. A gardener uses 2 L 400 mL for roses and 1 L 800 mL for ferns. How much water remains in the can?
A
1 L 800 mL
B
2 L 200 mL
C
1 L 600 mL
D
2 L 000 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
1 L 800 mL
Step-by-Step Explanation:
Total used = 2 L 400 mL + 1 L 800 mL = 4 L 200 mL. Remaining = 6 L - 4 L 200 mL = 1 L 800 mL.
26
Short Answer
Medium
1 Mark
At the Bakery Vanilla Extract Storage, staff pour 4 cups of water, each holding 150 mL. What is the total volume of water poured?
A
600 mL (0 L)
B
400 mL
C
1100 mL
D
300 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
600 mL (0 L)
Step-by-Step Explanation:
4 × 150 mL = 600 mL.
27
Multiple Choice
Easy
1 Mark
A measuring jug contains 1 litre and 450 mL of orange juice. How many total mL is this?
A
1,450 mL
B
145 mL
C
1,045 mL
D
14,500 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
1,450 mL
Step-by-Step Explanation:
1 L = 1,000 mL. 1,000 + 450 = 1,450 mL.
28
Multiple Choice
Easy
1 Mark
Which metric unit is most appropriate for measuring the capacity of a medicine dose spoon?
A
Millilitres (mL)
B
Litres (L)
C
Kilolitres (kL)
D
Grams (g)
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Millilitres (mL)
Step-by-Step Explanation:
Small liquid doses (like cough syrup) are measured in millilitres.
29
Multiple Choice
Easy
1 Mark
Convert 600 mL into litres and millilitres:
A
0 L 600 mL
B
6 L
C
1 L
D
0 L
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
0 L 600 mL
Step-by-Step Explanation:
600 mL = 0 L and 600 mL.
30
Multiple Choice
Easy
1 Mark
How many millilitres (mL) are in 4 litres (L)?
A
4,000 mL
B
400 mL
C
40,000 mL
D
40 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
4,000 mL
Step-by-Step Explanation:
1 litre = 1,000 mL. 4 × 1,000 = 4,000 mL.
31
Short Answer
Hard
2 Marks
An aquarium filter pumps 15 litres of water every minute. How many litres of water will the filter process in 1 hour?
A
900 litres
B
600 litres
C
750 litres
D
1,500 litres
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
900 litres
Step-by-Step Explanation:
1 hour = 60 minutes. 60 × 15 litres = 900 litres.
32
Short Answer
Hard
2 Marks
A teapot holds 1 litre 800 mL of tea. Grandma pours four 250 mL cups of tea for guests. How much tea is left in the teapot?
A
800 mL
B
600 mL
C
1,000 mL
D
750 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
800 mL
Step-by-Step Explanation:
Poured = 4 × 250 mL = 1,000 mL (1 L). Remaining = 1,800 mL - 1,000 mL = 800 mL.
33
Short Answer
Hard
2 Marks
A tall, narrow glass and a short, wide bowl both hold exactly 500 mL of juice. How is this possible?
A
Capacity depends on total interior 3D volume, not simply the height of the container
B
One of them must be leaking
C
The tall glass always holds more
D
Liquids shrink in bowls
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Capacity depends on total interior 3D volume, not simply the height of the container
Step-by-Step Explanation:
Volume depends on length, width, and height. A wider base compensates for shorter height.
34
Short Answer
Hard
2 Marks
Why does dropping a solid stone into a graduated cylinder filled with water cause the water level to rise?
A
The solid stone takes up space (volume), displacing an amount of water exactly equal to the stone's own volume
B
The stone dissolves water
C
The stone makes water heavier
D
Because stones have water inside
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
The solid stone takes up space (volume), displacing an amount of water exactly equal to the stone's own volume
Step-by-Step Explanation:
Matter takes up space. Submerging an object displaces liquid equal to the object's physical volume.
35
Short Answer
Medium
1 Mark
Sam reads a measuring jug from above looking downward and records 400 mL. At exact eye level, the liquid actually sits at 350 mL. What caused Sam's inaccurate reading?
A
Parallax error caused by looking from an angle rather than directly at eye level with the liquid meniscus
B
The measuring jug expanded
C
Water evaporates instantly
D
Digital jugs are required
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Parallax error caused by looking from an angle rather than directly at eye level with the liquid meniscus
Step-by-Step Explanation:
Looking down at an angle causes parallax error, making the liquid level appear higher than it actually is.
36
Short Answer
Medium
1 Mark
A student writes: '2 litres and 5 millilitres in mL is 2,500 mL.' What is the student's error?
A
2 L 5 mL is 2,005 mL; 2,500 mL represents 2 L 500 mL
B
2 L 5 mL is 250 mL
C
2 L is 200 mL
D
There is no mistake
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
2 L 5 mL is 2,005 mL; 2,500 mL represents 2 L 500 mL
Step-by-Step Explanation:
5 mL occupies the ones place, with zeroes in hundreds and tens: 2,000 + 5 = 2,005 mL.
37
Fill in the Blanks
Medium
1 Mark
How many 200 mL cups are needed to completely empty a full 1-litre bottle?
A
5 cups
B
4 cups
C
6 cups
D
10 cups
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5 cups
Step-by-Step Explanation:
1 L = 1,000 mL. 1,000 ÷ 200 = 5 cups.
38
Fill in the Blanks
Medium
1 Mark
Find the missing capacity: 3 L 250 mL + [ ? ] mL = 4 L
A
750 mL
B
650 mL
C
850 mL
D
700 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
750 mL
Step-by-Step Explanation:
4 L = 4,000 mL. 4,000 - 3,250 = 750 mL.
39
Short Answer
Medium
1 Mark
A bottle contains 2 litres of apple juice. If four children share the juice equally, how many millilitres does each child receive?
A
500 mL
B
400 mL
C
250 mL
D
600 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
500 mL
Step-by-Step Explanation:
2 L = 2,000 mL. 2,000 mL ÷ 4 = 500 mL per child.
40
Short Answer
Medium
1 Mark
A watering can holds 6 litres of water. A gardener uses 2 L 400 mL for roses and 1 L 800 mL for ferns. How much water remains in the can?
A
1 L 800 mL
B
2 L 200 mL
C
1 L 600 mL
D
2 L 000 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
1 L 800 mL
Step-by-Step Explanation:
Total used = 2 L 400 mL + 1 L 800 mL = 4 L 200 mL. Remaining = 6 L - 4 L 200 mL = 1 L 800 mL.
41
Short Answer
Medium
1 Mark
At the Greenhouse Plant Irrigation, staff pour 6 cups of water, each holding 500 mL. What is the total volume of water poured?
A
3000 mL (3 L)
B
2800 mL
C
3500 mL
D
1500 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
3000 mL (3 L)
Step-by-Step Explanation:
6 × 500 mL = 3000 mL.
42
Multiple Choice
Easy
1 Mark
A measuring jug contains 1 litre and 450 mL of orange juice. How many total mL is this?
A
1,450 mL
B
145 mL
C
1,045 mL
D
14,500 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
1,450 mL
Step-by-Step Explanation:
1 L = 1,000 mL. 1,000 + 450 = 1,450 mL.
43
Multiple Choice
Easy
1 Mark
Which metric unit is most appropriate for measuring the capacity of a medicine dose spoon?
A
Millilitres (mL)
B
Litres (L)
C
Kilolitres (kL)
D
Grams (g)
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Millilitres (mL)
Step-by-Step Explanation:
Small liquid doses (like cough syrup) are measured in millilitres.
44
Multiple Choice
Easy
1 Mark
Convert 3000 mL into litres and millilitres:
A
3 L 0 mL
B
30 L
C
4 L
D
0 L
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
3 L 0 mL
Step-by-Step Explanation:
3000 mL = 3 L and 0 mL.
45
Multiple Choice
Easy
1 Mark
How many millilitres (mL) are in 4 litres (L)?
A
4,000 mL
B
400 mL
C
40,000 mL
D
40 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
4,000 mL
Step-by-Step Explanation:
1 litre = 1,000 mL. 4 × 1,000 = 4,000 mL.
46
Short Answer
Hard
2 Marks
An aquarium filter pumps 15 litres of water every minute. How many litres of water will the filter process in 1 hour?
A
900 litres
B
600 litres
C
750 litres
D
1,500 litres
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
900 litres
Step-by-Step Explanation:
1 hour = 60 minutes. 60 × 15 litres = 900 litres.
47
Short Answer
Hard
2 Marks
A teapot holds 1 litre 800 mL of tea. Grandma pours four 250 mL cups of tea for guests. How much tea is left in the teapot?
A
800 mL
B
600 mL
C
1,000 mL
D
750 mL
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
800 mL
Step-by-Step Explanation:
Poured = 4 × 250 mL = 1,000 mL (1 L). Remaining = 1,800 mL - 1,000 mL = 800 mL.
48
Short Answer
Hard
2 Marks
A tall, narrow glass and a short, wide bowl both hold exactly 500 mL of juice. How is this possible?
A
Capacity depends on total interior 3D volume, not simply the height of the container
B
One of them must be leaking
C
The tall glass always holds more
D
Liquids shrink in bowls
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Capacity depends on total interior 3D volume, not simply the height of the container
Step-by-Step Explanation:
Volume depends on length, width, and height. A wider base compensates for shorter height.
49
Short Answer
Hard
2 Marks
Why does dropping a solid stone into a graduated cylinder filled with water cause the water level to rise?
A
The solid stone takes up space (volume), displacing an amount of water exactly equal to the stone's own volume
B
The stone dissolves water
C
The stone makes water heavier
D
Because stones have water inside
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
The solid stone takes up space (volume), displacing an amount of water exactly equal to the stone's own volume
Step-by-Step Explanation:
Matter takes up space. Submerging an object displaces liquid equal to the object's physical volume.
50
Short Answer
Medium
1 Mark
Sam reads a measuring jug from above looking downward and records 400 mL. At exact eye level, the liquid actually sits at 350 mL. What caused Sam's inaccurate reading?
A
Parallax error caused by looking from an angle rather than directly at eye level with the liquid meniscus
B
The measuring jug expanded
C
Water evaporates instantly
D
Digital jugs are required
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Parallax error caused by looking from an angle rather than directly at eye level with the liquid meniscus
Step-by-Step Explanation:
Looking down at an angle causes parallax error, making the liquid level appear higher than it actually is.