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Olympiad (Class 4) Human Needs — practice questions — page 2

Explore 51 free Human Needs questions in Olympiad (Class 4) Science. Open each question or exercise to read its content, reference answers and available explanation.

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Human Needs questions and exercises with answers

Showing questions 31–51 of 51.

Why must we wash our clothes often?Read the answer and worked solution →Very old sewing needles were made from which material?Read the answer and worked solution →Why did people near the Arctic Circle make clothes from animal furs and skins?Read the answer and worked solution →Which of these is used to build houses?Read the answer and worked solution →Which kind of house is the simplest?Read the answer and worked solution →Why do rooms need ventilation?Read the answer and worked solution →Which group has only things that people need to live?Read the answer and worked solution →Mina's family moves to a very cold hill town. Which two things will they need most?Read the answer and worked solution →Which one does not belong with food, water and air?Read the answer and worked solution →A roof protects from rain. A warm coat protects from what?Read the answer and worked solution →We eat food to get energy. We drink what to keep the body from drying out?Read the answer and worked solution →Ali plays in the hot sun and feels very thirsty. What is the best thing to do?Read the answer and worked solution →Which water is safest to drink?Read the answer and worked solution →A town tells people to boil water before use. Why?Read the answer and worked solution →Rivers, streams and glaciers are what kind of water source?Read the answer and worked solution →What is done to sea water to make it fit to drink?Read the answer and worked solution →To keep a healthy weight, the energy you eat should be about equal to what?Read the answer and worked solution →Which food helps you get fibre?Read the answer and worked solution →A healthy diet should have only a little of which foods?Read the answer and worked solution →Which clothes suit a hot desert day best?Read the answer and worked solution →Clean toilets and clean drains are part of which basic need?Read the answer and worked solution →

Worked practice questions

Why must we wash our clothes often?

  1. Water shrinks them
  2. Sweat and dust soil them
  3. They slowly grow
  4. They turn warmer
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Correct answer: B. Sweat and dust soil them

Sweat, oils and dirt soil clothes, so washing keeps them clean and healthy to wear.

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Very old sewing needles were made from which material?

  1. Plastic
  2. Rubber
  3. Bone
  4. Paper
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Correct answer: C. Bone

Early people had no steel or plastic, so they carved needles from bone and ivory.

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Why did people near the Arctic Circle make clothes from animal furs and skins?

  1. To look bright
  2. To feel very light
  3. To save money
  4. To keep warm
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Correct answer: D. To keep warm

Fur and skin hold body heat well, and these were the materials found in the freezing Arctic.

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How to practise

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