Chapter 10
Technology in Everyday Life
Science
Grade/class 4
Questions 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17 PTBB, Pakistan 2023 SLO's Topics covered in questions.
Technology in Everyday Life
Question: 1
What are the benefits of first aid?
Answer:
Preservation of Life: One of the most critical benefits of first aid is its potential to save lives.
Prevention of Further Injury or Complications: First aid helps prevent the worsening of an injury or illness and reduces the risk of complications.
Question: 2
What is the role of mobile phones in our life?
Answer:
Mobile phones play a central role in modern life, connecting us globally, providing instant communication, information access, entertainment, and essential services.
Question: 3
Which model items can we make using paper?
Answer:
1. Greeting cards
2. Paper Bag
3. Envelope
Question: 4
Explain techniques of folding, cutting, tearing and pasting papers, cardboard to make objects and patterns?
Answer:
Folding:
We need some skill for folding, cutting, tearing and pasting papers and cardboard. Let us practice and learn through using following activities:
Cutting:
Paper can be cut easily by using paper cutter or knife.
Paper is folded along the line where it is to be cut. Blade of paper cutter is inserted inside the fold. Then pressing the fold with one hand, the paper cutter is pushed forward as shown in the figure with one hand, the paper cutter is pushed forward as shown in the figure below. Paper and cardboard can also be cut with the help of scissors. It is better we draw a line and cut along the line carefully.
Tearing:
Pasting of Paper:
Normally gum or glue is applied on the back of paper to be pasted.
Question: 5
Design models of sphere, cube, prism, cylinder and cone with clay or play dough?
Answer:
Home Activity
Question: 6
Design hammer, wheels, rollers and gears using clay or play dough?
Answer:
Class Activity
Question: 7
How to operate tablets/mobile phones for use of calculator, alarm clock and calendar?
Answer:
Calculator:
For using calculator click on the menu button on your mobile phone screen as shown in the figure. Now click on the calculator icon. As you get a calculator on the screen, find out the answer for 129✕27. After that solve it yourself. Check your answer. Does your answer match with calculator answer.
Alarm clock and calendar:
Click on the clock icon of phone screen. Doing so will open a new alarm page. Set the alarm for 10 minutes after it and observe its working. Similarly there will be an icon of calendar on your phone screen. Find the day of your birth.
Question: 8
How to operate mobile phones for taking snapshots?
Answer:
Click on the camera icon on your phone screen. Take snaps of your friends. Click on the button that is mostly lower side of screen with circular shape.
Question: 9
Write the items of first aid box?
Answer:
1.Handbook
2.Tweezers and scissors
3. Cotton and Alcohol
4.Bandages
5. Gauzes
6. Medical Tape
7. Instant cold pack
8. Thermometer
Question: 10
How to use digital and clinical thermometer externally to measure body temperature?
Answer:
1. Take a digital or clinical thermometer from the first aid box. Ensure that its bulb is sterilized.
2. Give it few jerks to bring the mercury or alcohol level down into the bulb. The digital thermometer does not need the jerks.
3.Put the bulb of the thermometer under the armpit of your friend for one minute.
4.Remove it from the armpit and read its scale.
5.Add 1 in this reading. This will give you the correct internal temperature of the body.
Question: 11
How to check blood pressure by digital Blood Pressure Monitor?
Answer:
1.Put the cuff around the arms as shown in the figure.
2. Push the ON button of the automatic model.
3.The cuff will inflate by filling air inside it and reading will appear in display screen.
4.Look at the display screen to see your blood pressure reading.
5. Push the exhaust button to release air from the cuff and remove it.
6.Keep the record of blood pressure of the patients.
Question:12
What is the difference between a cone and a prism?
Answer:
A cone has a curved surface and a circular base, while a prism has flat surfaces and polygonal bases.
Question:13
Can an envelope be made from a square shaped paper?
Answer:
Yes, by folding diagonally and securing edges, a square paper transforms into an envelope.
Question:14
Why is a line drawn on a paper before cutting it with scissor?
Answer:
Drawing a line helps guide precise cutting, ensuring accuracy and desired shape in crafts or projects.
Question:15
Why is a clinical thermometer given jerks a few times before using it?
Answer:
Jerking a clinical thermometer breaks the mercury column, resetting it for accurate temperature measurement.
Question:16
Why can any soil not be used to make a model?
Answer:
Soil for modeling needs proper texture, like clay-rich soil, allowing shaping and drying without cracking, ensuring a durable and realistic model.
Question:17
Write activity of preparation of clay for Making Models?
Answer:
1. Take some clay.
2. Mix a little water in it and make a dough of clay.
3. Stretch and compress it many times like a dough of flour which is made for chappati/bread.
4. This dough of clay is called kneaded clay wchich can be used for making clay models.
Question:18
How to measure body temperature using First Aid box?
Answer:
INTERESTING INFORMATION:
Checking Blood Pressure:
The blood pressure of a person is required to remain within a limit for human health. Its normal limit is 120/80 mm Hg. Having high blood pressure or low pressure can lead to different health problems.
The instrument used to measure blood pressure is called blood pressure apparatus.
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