Let's solve each part of the problem step by step.
---
Part 1: State the most suitable unit of length, cm or m.
####
a)
- The object is a small ruler or stick.
- The length is given as
8.
- Since the object is small, the most suitable unit is
cm.
-
Answer: 8 cm
####
b)
- The object is a rectangular mat or cloth.
- The length is given as
25.
- Since the object is relatively large but not extremely long, the most suitable unit is
cm.
-
Answer: 25 cm
####
c)
- The object is a coiled garden hose.
- The length is given as
5.
- Since the object is quite long when uncoiled, the most suitable unit is
m.
-
Answer: 5 m
---
Part 2: State a suitable mass unit, g or kg.
####
a)
- The object is a durian fruit.
- The mass is given as
2.
- Durians are typically heavy fruits, so the most suitable unit is
kg.
-
Answer: 2 kg
####
b)
- The object is a carrot.
- The mass is given as
300.
- Carrots are relatively light, so the most suitable unit is
g.
-
Answer: 300 g
####
c)
- The object is a muffin.
- The mass is given as
60.
- Muffins are light, so the most suitable unit is
g.
-
Answer: 60 g
---
Part 3: State a suitable volume unit, ml or l.
####
a)
- The object is a cup of coffee.
- The volume is given as
150.
- Cups of coffee are typically measured in milliliters, so the most suitable unit is
ml.
-
Answer: 150 ml
####
b)
- The object is a large water container.
- The volume is given as
10.
- Large containers like this are typically measured in liters, so the most suitable unit is
l.
-
Answer: 10 l
---
Part 4: State the length of the pen.
- The pen is placed on a ruler.
- The ruler shows the length from the 0 cm mark to the tip of the pen.
- The tip of the pen aligns with the
8 cm mark.
-
Answer: 8 cm
---
Part 5: What is the mass?
- The object is a pumpkin on a scale.
- The scale shows the mass as
3 kg.
-
Answer: 3 kg
---
Part 6: What is the volume?
- The object is a beaker filled with liquid.
- The liquid level reaches the
80 ml mark on the beaker.
-
Answer: 80 ml
---
Final Answers:
1.
- a)
8 cm
- b)
25 cm
- c)
5 m
2.
- a)
2 kg
- b)
300 g
- c)
60 g
3.
- a)
150 ml
- b)
10 l
4.
8 cm
5.
3 kg
6.
80 ml
---
Boxed Final Answer:
\[
\boxed{
\begin{array}{l}
1. \text{a) } 8 \text{ cm}, \text{b) } 25 \text{ cm}, \text{c) } 5 \text{ m} \\
2. \text{a) } 2 \text{ kg}, \text{b) } 300 \text{ g}, \text{c) } 60 \text{ g} \\
3. \text{a) } 150 \text{ ml}, \text{b) } 10 \text{ l} \\
4. 8 \text{ cm} \\
5. 3 \text{ kg} \\
6. 80 \text{ ml}
\end{array}
}
\]
Parent Tip: Review the logic above to help your child master the concept of mass and volume worksheet.