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Question
Guess and Find Out
If a handkerchief is made out of a single thread, how long would that thread be?
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Solution
If a handkerchief is made out of a single thread, then the length of the thread may be about 5000 meters.
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RELATED QUESTIONS
Try This.
Draw a cup 1 cm shorter than this cup.
This is the long jump for boys.
Dhanu has the longest jump of 3 metres 40 cm. Gurjeet is second. His jump is 20 cm less than Dhanu's. Gopi comes third. His jump is only 5 cm less than Gurjeet's jump.
- How long are Gurjeet's and Gopi's jumps?
- Try and see how far you can jump.
- How far can you throw a ball?
- Look for a big ball, like a football or volleyball. How far can you kick it?
Here are the Indian Records and World Records for some jumps.
| Sports | World Record | Indian Record |
| High Jump (Men) | Javier S. (2m 45 cm) | Chandra Pal (2m 17 cm) |
| Long Jump (Men) | Mike P. (8m 95 cm) | Amrit Pal (8m 8 cm) |
| High Jump (Women) | Stefka K. (2m 9 cm) | Bobby A. (1m 91 cm) |
| Long Jump (Women) | Galina C. (7m 52 cm) | Anju G. (6m 83 cm) |
Find out from the table -
Look at the Women's World Records. What is the difference between the longest jump and the highest jump?
Here are the Indian Records and World Records for some jumps.
| Sports | World Record | Indian Record |
| High Jump (Men) | Javier S. (2m 45 cm) | Chandra Pal (2m 17 cm) |
| Long Jump (Men) | Mike P. (8m 95 cm) | Amrit Pal (8m 8 cm) |
| High Jump (Women) | Stefka K. (2m 9 cm) | Bobby A. (1m 91 cm) |
| Long Jump (Women) | Galina C. (7m 52 cm) | Anju G. (6m 83 cm) |
Find out from the table -
Whose high jump is very close to two and a half meters?
Think - How will you know the number of centimetres if you measure with a rope, shoe-string, thread etc.?
| My measurement | My friend's measurement | |
| Nose | ______ centimetres | ______ centimetres |
| Around the wrist | ______ centimetres | ______ centimetres |
| Around the head | ______ centimetres | ______ centimetres |
| Ear | ______ centimetres | ______ centimetres |
| Hand (tip of middle finger to wrist) | ______ centimetres | ______ centimetres |
Activity 1
- Find some things that look 1 metre long.
- Use your metre-rope to find which of these things are more or less than 1 metre.
| Name of the thing | More than 1 metre | Less than 1 metre |
| Length of table | - | - |
| Width of table | - | - |
| Width of door | - | - |
| Length of door | - | - |
| - | - | |
| - | - | |
| - | - |
Which of these will be in centimetres and which will be in metres?
Width of computer screen
Which of these will be in centimeters and which will be in meters?
Depth of a well
Which of these will be in centimetres and which will be in metres?
Height of your mother
Draw lines to match each picture with how long it can be.
|
Length of an earthworm |
2 kilometres |
|
Height of a child |
5 metres |
|
Width of a finger nail |
10 centimetres |
|
Length of a Sari |
1 centimetre |
|
Distance from home to school |
1 metre |
