Review the key concepts, formulae, and examples before starting your quiz.
🔑Concepts
Health is a state of complete physical and mental well-being, while hygiene refers to practices that lead to good health and cleanliness.
Personal hygiene involves keeping the body clean by bathing daily, brushing teeth twice a day, and washing hair regularly.
Hand hygiene is crucial: Hands should be washed with soap and clean before and after meals, and after using the toilet.
Germs are tiny microorganisms that cause diseases; they spread through dirty hands, contaminated food, and .
Maintaining short and clean nails prevents dirt and germs from entering our bodies when we eat.
Oral hygiene involves brushing to remove food particles and prevent the growth of bacteria that cause .
A healthy lifestyle includes balanced nutrition, regular exercise, and approximately hours of sleep for children.
📐Formulae
💡Examples
Problem 1:
If a student goes to bed at and wakes up at , how many hours of rest did they get?
Solution:
Explanation:
The duration from to midnight is , and from midnight to is . Therefore, .
Problem 2:
Why is it recommended to drink filtered or boiled ?
Solution:
To kill germs and remove impurities.
Explanation:
Boiling at ensures that most disease-causing microorganisms are destroyed, making it safe for consumption.
Problem 3:
Identify the primary substance used to maintain dental hygiene.
Solution:
Fluoride toothpaste and a toothbrush.
Explanation:
Brushing removes plaque and food debris, while the fluoride in toothpaste helps strengthen the tooth enamel.