🔬 ScienceGrade 2Lesson 27
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Daily Hygiene and Habits

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Learning Objectives

  • 1Explain why daily hygiene habits protect the body from germs
  • 2Describe how to wash hands and brush teeth correctly
  • 3Put a healthy morning routine in the correct order
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Mini Lesson

Your body is incredible — but it needs your help to stay healthy. The small habits you do every single day have a big effect on how your body feels and fights off illness. Hygiene means keeping your body clean and healthy to stop germs from spreading.

What are germs?

  • Germs are tiny living things — bacteria and viruses — that can make you sick. They are so small you cannot see them without a microscope.
  • Germs spread when you touch your face, share objects, sneeze, or cough without covering your mouth.
  • Good hygiene habits stop germs from entering your body or spreading to others.

Washing your hands — the most important habit

  • Hands touch hundreds of surfaces every day, picking up germs along the way.
  • Always wash your hands: before eating, after using the toilet, after coughing or sneezing, after touching animals, and after playing outside.
  • The correct steps: 1) Wet hands with clean water, 2) Apply soap, 3) Scrub for at least 20 seconds (sing Happy Birthday twice), 4) Rinse well, 5) Dry with a clean towel.
  • Soap works by breaking apart the outer layer of viruses and washing bacteria away — water alone is not enough.

Brushing your teeth

  • Brush twice a day — morning and before bed — for at least two minutes each time.
  • Bacteria in your mouth feed on leftover food and produce acid. That acid erodes your tooth enamel and causes cavities.
  • Brushing removes the bacteria and food before they can cause damage. Flossing cleans between teeth where your brush cannot reach.

Bathing and other daily habits

  • Bathe or shower daily to remove sweat, dirt, and dead skin cells that can harbor bacteria.
  • Wear clean clothes each day — yesterday’s clothes carry sweat and bacteria.
  • Cover your mouth and nose with your elbow when you sneeze or cough to stop droplets spreading germs.
  • Trim nails regularly — dirt and bacteria collect under long nails.
Five steps for washing hands correctlyA numbered sequence of five steps for hand washing: wet, soap, scrub 20 seconds, rinse, dry.How to Wash Your Hands1. Wethands2. Soapapply3. Scrub20 secs4. Rinsewell5. DrytowelWhy soap? Soap breaks apartviruses and washes bacteria away.Water alone is NOT enough!Always wash hands when...- Before eating - After the toilet- After coughing - After touching animals- After playing outside
The five steps for correct hand washing, and when to wash — soap is essential because water alone cannot remove viruses.
Morning hygiene routine — six steps in orderSix steps of a healthy morning routine shown in a numbered vertical list: wake up and use the toilet, wash face and hands, brush teeth, comb hair, get dressed in clean clothes, eat a healthy breakfast.Morning Routine1. Wake up and use the toilet2. Wash your face and hands3. Brush your teeth4. Comb or brush your hair5. Get dressed in clean clothes6. Eat a healthy breakfast
A healthy morning routine in six steps — from waking up to eating breakfast.
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Ask yourself: Can I explain why each hygiene habit matters and put my morning routine steps in the correct order?

Vocabulary
Hygiene
Keeping your body clean and healthy to stop germs spreadinge.g. washing hands, brushing teeth
Germs
Tiny bacteria and viruses too small to see that can make you sicke.g. spread by sneezing or touching surfaces
Bacteria
Tiny living things; some are harmful and make you ille.g. bacteria on unwashed hands
Virus
A very small germ that can spread and cause illnesse.g. a flu or cold virus
Soap
A cleaner that breaks apart viruses and washes bacteria awaye.g. used with water on hands
Enamel
The hard protective outer layer of your teethe.g. tooth enamel protects the tooth inside
Cavity
A hole in a tooth caused by acid from mouth bacteriae.g. a cavity that needs a dental filling
Routine
A set of steps you do in the same order every daye.g. a morning hygiene routine
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← Lesson 26: Explain How Brain and Heart WorkLesson 28: Balanced Diet and Food Groups →