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Safety and First Aid - 2 Class 3 Worksheet Science

Q1: True or False.

(i) In case of a minor burn, you should immediately apply ice to the affected area.
Ans:
False
Applying ice to a minor burn can further damage the skin. Instead, cool the burn with cold water for at least 10 minutes.
Safety and First Aid - 2 Class 3 Worksheet Science

(ii) It is safe to play with electrical outlets and plugs if your hands are dry.
Ans:
False
Playing with electrical outlets and plugs, regardless of dry hands, can lead to electrical shocks. It's essential to avoid such activities and treat electrical appliances with caution.

(iii) In the event of a nosebleed, tilt your head back to stop the bleeding.
Ans: 
False
Tilting the head back during a nosebleed can cause blood to flow down the throat and possibly lead to choking. The correct approach is to lean slightly forward and pinch the soft part of the nose for 5-10 minutes.

(iv) If someone is choking, you should perform the Heimlich maneuver immediately.
Ans: 
True
The Heimlich maneuver is a technique used to dislodge an obstruction from the throat, and it should be performed immediately when someone is choking.

(v) It is necessary to wear a helmet when riding a bicycle or skateboard.
Ans:
True
Wearing a helmet while riding a bicycle or skateboard helps protect the head from injury in case of an accident.

(vi) When using a knife, it is best to cut away from your body.
Ans: 
True
Cutting away from your body reduces the risk of accidentally cutting yourself.

(vii) If you find a broken glass on the floor, you should pick it up with your bare hands.
Ans: 
False
When handling broken glass, it is essential to use gloves or a broom and dustpan to avoid cuts and injuries.
Safety and First Aid - 2 Class 3 Worksheet Science

(viii) If someone is experiencing a seizure, you should restrain them to prevent movement.
Ans: 
False
During a seizure, you should not restrain the person. Instead, move any nearby objects away to prevent injury and ensure the person's head is protected.

(ix) It is safe to mix different cleaning chemicals together to increase their effectiveness.
Ans:
False
Mixing different cleaning chemicals can produce harmful fumes and may cause chemical reactions that can be dangerous. It's essential to use chemicals as instructed on the labels.

(x) If someone is bitten by a venomous snake, apply a tourniquet above the bite area to prevent the venom from spreading.
Ans: 
False
Applying a tourniquet can restrict blood flow and lead to more significant complications. Instead, seek immediate medical attention for a snake bite.

Q2: Match the Following.


Safety and First Aid - 2 Class 3 Worksheet ScienceAns:
Bandage - E. Covering and protecting wounds.
Ice pack - C. Reducing swelling and pain in bruises and sprains.
Antiseptic wipes - B. Cleaning and disinfecting minor cuts and scrapes.
Adhesive tape - A. Securing bandages and dressings.
Tweezers - D. Removing splinters or foreign objects from the skin.

Q3: Arrange in the Correct Order.

Arrange the steps in the correct order for the following first aid procedures.
(i)
First Aid for a Nosebleed
(a) Tilt the head back.
(b) Pinch the soft part of the nose.
(c) Lean slightly forward.
(d) Keep the head elevated for a few minutes after the bleeding stops.
Ans: c → b → d →a
When someone has a nosebleed, the correct order of first aid steps is to lean slightly forward, pinch the soft part of the nose, keep the head elevated for a few minutes after the bleeding stops, and avoid tilting the head back.

(ii) First Aid for a Minor Burn
(a)
Apply ice to the burn immediately.
(b) Run cold water over the burn for at least 10 minutes.
(c) Pop any blisters that form.
(d) Cover the burn with a sterile non-stick bandage.
Ans: a → d → a
In the case of a minor burn, the correct order of first aid steps is to run cold water over the burn for at least 10 minutes, cover the burn with a sterile non-stick bandage, and avoid applying ice immediately.

(iii) First Aid for Choking
(a)
Perform the Heimlich maneuver.
(b) Call for emergency help if the person cannot breathe or speak.
(c) Encourage the person to drink water.
(d) Pat the person's back forcefully.
Ans: b → a
If someone is choking, the first aid steps involve calling for emergency help if the person cannot breathe or speak, and then performing the Heimlich maneuver if necessary. Encouraging the person to drink water or patting the back forcefully are not recommended steps for choking first aid.
Safety and First Aid - 2 Class 3 Worksheet Science

(iv) First Aid for a Snake Bite
(a)
Apply a tourniquet above the bite area.
(b) Keep the bitten limb elevated.
(c) Wash the bite area with soap and water.
(d) Seek immediate medical attention.
Ans: b → b → d
If someone is bitten by a venomous snake, the correct first aid steps are to wash the bite area with soap and water, keep the bitten limb elevated, and seek immediate medical attention. Applying a tourniquet above the bite area is not recommended, as mentioned in the True/False section.

(v) First Aid for Cuts and Scrapes
(a)
Apply a bandage to the wound.
(b) Clean the wound with antiseptic wipes.
(c) Use tweezers to remove any debris from the wound.
(d) Elevate the injured limb.
Ans: b → c → a
For cuts and scrapes, the correct order of first aid steps is to clean the wound with antiseptic wipes, use tweezers to remove any debris from the wound, and then apply a bandage. Elevating the injured limb is not a standard first aid step for cuts and scrapes.

Q4: Multiple Choice Questions (MCQs).

(i) What is the primary purpose of first aid in the case of burns?
(a) To break blisters formed on the skin.
(b) To cool the skin and prevent further damage.
(c) To apply antiseptic cream immediately.
(d) To wait for a doctor to arrive.

Ans: (b)
The primary purpose of first aid for burns is to cool the skin and prevent further damage. This is achieved by placing the burnt area under cold water.

(ii) When should you apply tincture of iodine to a wound?
(a) Before washing the wound with water.
(b) After washing the wound with water.
(c) Only if the wound is deep.
(d) Never, as it can be harmful.

Ans: (b)
Tincture of iodine should be applied to a wound after washing it with water. It helps disinfect the wound.

(iii) What is the recommended first aid for an animal bite, such as from a dog?
(a) Apply ice immediately.
(b) Wash with soap and water and apply an antiseptic lotion.
(c) Apply a paste of baking soda.
(d) Take the patient to the hospital for stitches.

Ans: (b)
For an animal bite, such as from a dog, the recommended first aid is to wash the affected area with soap and water and apply an antiseptic lotion. This helps prevent infection.
Safety and First Aid - 2 Class 3 Worksheet Science

(iv) How should you provide support for a suspected fractured hand?
(a) Use a cloth sling.
(b) Apply ice to reduce swelling.
(c) Move the hand gently to prevent stiffness.
(d) Tie a tourniquet above the hand to stop blood flow.

Ans: (a)
When a suspected hand fracture occurs, support can be provided using a cloth sling. It's important not to move the fractured part and to seek medical attention promptly.

(v) What should you do when experiencing a nosebleed according to the first aid instructions?
(a)
Blow your nose vigorously.
(b) Apply pressure to the back of the neck.
(c) Breathe through your nose.
(d) Sit upright with your head held back and arms folded above the head.
Ans: (d)
During a nosebleed, it's recommended to sit upright with your head held back and arms folded above the head. This position helps reduce blood flow to the nose. Blowing your nose, applying pressure to the back of the neck, and breathing through your nose are not appropriate first aid measures for a nosebleed.

Q5: Answer the following Questions.

(i) What is the main aim of first aid?
Ans: 
The main aim of first aid is to provide immediate and basic medical assistance to an injured or ill person until professional medical help can be obtained. The primary goals of first aid are to preserve life, prevent the condition from worsening, and promote recovery.

(ii) What should we do when a cut is deep and bleeding?
Ans:
When a cut is deep and bleeding, follow these steps:

  • Wash your hands with soap and water to avoid infection.
  • Gently clean the wound with water and mild soap, if available.
  • Apply direct pressure to the wound using a clean cloth or sterile bandage to control bleeding.
  • Elevate the injured area if possible, as it can help reduce bleeding.
  • Once bleeding is under control, cover the wound with a sterile dressing or clean cloth.
  • Seek medical help if the bleeding is severe, the wound is large, or if you are unsure about the seriousness of the injury.

(iii) What is a tourniquet?
Ans: 
A tourniquet is a device used to stop severe bleeding from an arm or leg. It is typically a wide band made of fabric, rope, or any other suitable material. Tourniquets are applied above the injured area (closer to the torso) to restrict blood flow to the injured limb. Tourniquets are considered a last resort and should only be used in extreme situations where direct pressure or other methods have failed to control severe bleeding. Immediate medical help should be sought after the application of a tourniquet.
Safety and First Aid - 2 Class 3 Worksheet Science

(iv) What do you mean by a fracture? What first aid should be given to the victim of a fracture?
Ans: 
A fracture is a break or crack in a bone. It can be a result of an accident, fall, or any forceful impact. First aid for a fracture involves the following steps:

  • Encourage the injured person to stay as still as possible to prevent further injury.
  • Call for emergency medical help immediately.
  • If there is an open wound, cover it with a clean cloth or sterile dressing.
  • Apply ice packs wrapped in cloth to the injured area to reduce swelling and pain.
  • Immobilize the injured limb by using splints or improvised materials (e.g., rolled-up newspapers, boards) to keep the broken bone from moving.
  • Do not try to realign the bone; leave it to medical professionals.

(iv) Suggest the first aid to be given for nose bleeding.
Ans:
For nose bleeding, follow these first aid steps:

  • Ask the person to sit down and lean slightly forward to avoid swallowing blood.
  • Pinch the soft part of the nose (just below the bridge) using your thumb and index finger.
  • Maintain pressure on the nose for at least 10-15 minutes without releasing it. This helps to stop the bleeding.
  • Apply a cold compress or ice pack wrapped in a cloth to the bridge of the nose to help constrict blood vessels and reduce bleeding.
  • Avoid tilting the head backward, as this can cause blood to flow down the throat.
  • If the nosebleed continues for more than 20-30 minutes, or if it's a result of a severe injury, seek medical help immediately.
The document Safety and First Aid - 2 Class 3 Worksheet Science is a part of the Class 5 Course Science Class 5.
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FAQs on Safety and First Aid - 2 Class 3 Worksheet Science

1. What are the most common first aid procedures that everyone should know?
Ans. The most common first aid procedures that everyone should know include CPR (cardiopulmonary resuscitation), treating burns, stopping bleeding, performing the Heimlich maneuver for choking, and applying basic bandaging and splinting techniques.
2. How can I identify if someone is experiencing a heart attack?
Ans. The signs and symptoms of a heart attack include chest pain or discomfort, shortness of breath, nausea or vomiting, lightheadedness, and discomfort in other areas of the upper body such as the arms, back, neck, jaw, or stomach. If you suspect someone is having a heart attack, call emergency services immediately.
3. What should I do if I witness someone having a seizure?
Ans. If you witness someone having a seizure, it is important to stay calm and keep them safe. Clear the area of any objects that could cause injury, cushion their head with something soft, and do not restrain them. Time the seizure and call emergency services if it lasts longer than five minutes or if the person is injured.
4. How can I prevent common household accidents?
Ans. To prevent common household accidents, it is important to keep the floors clear of clutter, secure area rugs to prevent tripping, install handrails on staircases, use non-slip mats in the bathroom, keep cleaning products and medications out of reach of children, and regularly check and maintain smoke detectors and fire extinguishers.
5. What should I do if someone is experiencing an allergic reaction?
Ans. If someone is experiencing an allergic reaction, especially if they are having difficulty breathing or if their symptoms are severe, it is important to call emergency services immediately. If they have an epinephrine auto-injector (such as an EpiPen), assist them in using it. Stay with the person and monitor their condition until medical help arrives.
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