Natural Sciences and Technology Grade 6-A - Thunderbolt Kids

Natural Sciences and Technology Grade 6-A - Thunderbolt Kids Natural Sciences and Technology Grade 6-A - Thunderbolt Kids

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2 Nutrients in food NEW WORDS • classification • carbohydrates • proteins • vitamins • nutrition • pyramid • immune system • insulate 22 KEY QUESTIONS • Why do Ihave to eat so many dierent things -why can't I just eat what I like? • I have heard that people say: 'You are what you eat...' - what does that mean? • What is so bad about sugary sweets -why shouldn't Ieat lots of them? • What is the dierence between a fat and an oil? 2.1 Food groups All living plants and animals need to feed or eat to give them energy to carry out the life processes. Plants make their own food from sunlight, water and carbon dioxide through the process of photosynthesis. Animals cannot make their own food and need to eat plants or other animals to get energy. People also have to eat plant or animal products to get energy to grow and develop. Classification oood groups The food we eat can be grouped or classified into dierent types or groups. We call these food groups. There are a four main food groups and each food group does adierent job in the body: • Carbohydrates • Proteins • Fats and oils • Vitamins and minerals

Examples of the foods in the food groups, carbohydrates, proteins and fats and oils. We classify food according to these food groups, although most foods contain a mixture of more than one nutrient group. Let's look at each food group separately and see why each one is important: 1. Carbohydrates: • They are the most important source of energy for the body. • They store energy for the body. • Carbohydrates are an important part of the body structure. • Foods that contain carbohydrates are: pasta, samp, potatoes, cereal, mealie meal, porridge and bread. Chapter 2. Nutrients in food 23

2 Nutrients in food<br />

NEW WORDS<br />

• classification<br />

• carbohydrates<br />

• proteins<br />

• vitamins<br />

• nutrition<br />

• pyramid<br />

• immune system<br />

• insulate<br />

22<br />

KEY QUESTIONS<br />

• Why do Ihave to eat so many dierent things -why can't I<br />

just eat what I like?<br />

• I have heard that people say: 'You are what you eat...' -<br />

what does that mean?<br />

• What is so bad about sugary sweets -why shouldn't Ieat<br />

lots of them?<br />

• What is the dierence between a fat <strong>and</strong> an oil?<br />

2.1 Food groups<br />

All living plants <strong>and</strong> animals need to feed or eat to give them<br />

energy to carry out the life processes. Plants make their own food<br />

from sunlight, water <strong>and</strong> carbon dioxide through the process of<br />

photosynthesis. Animals cannot make their own food <strong>and</strong> need to<br />

eat plants or other animals to get energy. People also have to eat<br />

plant or animal products to get energy to grow <strong>and</strong> develop.<br />

Classification oood groups<br />

The food we eat can be grouped or classified into dierent types<br />

or groups. We call these food groups. There are a four main food<br />

groups <strong>and</strong> each food group does adierent job in the body:<br />

• Carbohydrates<br />

• Proteins<br />

• Fats <strong>and</strong> oils<br />

• Vitamins <strong>and</strong> minerals

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