Food Nutrition and Health (Class 4)

What this worksheet covers

This is a fifteen-question practice worksheet on food, nutrition and health for Class 4, written to the pattern of the SOF National Science Olympiad (NSO). It carries 21 marks and is designed to be attempted in 40 minutes, split across three sections — Scientific Reasoning, Applying What You Know and Achievers Section. Every question is multiple choice with exactly one correct option, and every one comes with a fully worked solution rather than just an answer key — so a child who gets one wrong can see where the reasoning went astray instead of only learning that it did.

Skills your child practises

• Applied problem-solving on food, nutrition and health at Class 4 level
• Working accurately against a time limit, as the real paper demands
• Scientific Reasoning questions in the olympiad format
• Applying What You Know questions in the olympiad format
• Achievers Section questions in the olympiad format
• Reading worked solutions to find the step that went wrong

How to use it

1. 1There are 15 questions in this worksheet. All questions are compulsory.
2. 2Each question has four options (A), (B), (C) and (D). Exactly one option is correct.
3. 3Questions 1–12 carry 1 mark each. Questions 13–15 (Achievers Section) carry 3 marks each.
4. 4There is no negative marking. Study every diagram and table carefully.

Sample questions from this worksheet

A preview of what's inside Food Nutrition and Health (Class 4) — the PDF has the full set, and every question comes with a worked solution like these.

1. 1. Which nutrient is the body's main source of energy?

   • ACarbohydratescorrect
   • BProteins
   • CVitamins
   • DMinerals
   Solution: Carbohydrates such as rice, wheat, potato and sugar are broken down quickly to release energy, so they form the largest part of most meals.

2. 2. A few drops of iodine solution are put on a slice of raw potato and it turns blue-black. This shows that potato contains _______.

   • AFat
   • BProtein
   • CVitamin C
   • DStarchcorrect
   Solution: Iodine solution is the standard test for starch: it changes from brown to blue-black wherever starch is present.

3. 3. Consider the following statements.(i) A balanced diet is exactly the same for every person.(ii) Vitamins and minerals are needed in small amounts but are essential for health.(iii) Overcooking vegetables destroys some of the vitamins in them.Which of the statements is/are correct?

   • A(i) and (ii) only
   • B(ii) and (iii) onlycorrect
   • C(i) and (iii) only
   • DAll three
   Solution: Statement (i) is false — a growing child, a labourer and an elderly person all need different amounts, so a balanced diet differs from person to person. Statements (ii) and (iii) are both true; vitamin C in particular is destroyed by prolonged heating. Hence (ii) and (iii).