🔬 ScienceGrade 4Lesson 32
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First aid basics

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Learning Objectives

  • 1Define first aid and explain why it is important
  • 2Describe the correct steps for treating a minor cut
  • 3Identify the appropriate first aid response for common injuries
  • 4Explain the RICE method for treating sprains
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Mini Lesson

First aid is the immediate help given to a person who is injured or suddenly ill. Knowing basic first aid allows you to act quickly and calmly before medical professionals arrive. Quick action can prevent a minor injury from becoming serious.

Treating a Minor Cut

Even small cuts need proper care to prevent infection. Follow these five steps every time you treat a cut.

  1. Stop the bleeding by applying gentle pressure with a clean cloth.
  2. Clean the wound with clean running water to remove dirt and germs.
  3. Apply antiseptic to prevent infection.
  4. Cover with a clean bandage to protect the wound.
  5. Monitor for signs of infection such as redness, swelling, or fever.

Common Injuries and Responses

Different injuries require different first aid responses. Knowing the correct response for each type of injury is essential for staying safe.

  • Burn — Cool with running water for at least 10 minutes. Do not use ice or butter.
  • Nosebleed — Lean forward and pinch the soft part of the nose for 10 minutes.
  • Sprain — Use the RICE method: Rest, Ice, Compress, and Elevate.
  • Choking — Perform back blows followed by abdominal thrusts (Heimlich maneuver).
  • Fainting — Lay the person down and raise their legs to improve blood flow to the brain.
First Aid KitFirst Aid KitBandagesAntisepticScissorsGlovesThermometerKeep a first aid kit at home and in the car
RICE MethodRICE Method for SprainsRestno movementIceicepackCompressbandage wrapElevateraise above heart
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Tip: remember RICE for sprains — Rest, Ice, Compress, Elevate.

Vocabulary
first aid
Immediate help given to an injured or ill person before professional medical care arrives.
antiseptic
A substance that kills germs and prevents infection in a wound.
bandage
A strip of material used to cover and protect a wound.
sprain
An injury caused by overstretching or tearing a ligament around a joint.
RICE
A first aid method for sprains: Rest, Ice, Compress, Elevate.
infection
The invasion of the body by harmful germs that cause illness or damage.
abdominal thrusts
A first aid technique used to dislodge an object blocking the airway of a choking person.
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