Chapter 1: Food: Where Does It Come From? - Science Notes for CBSE Class 6
Chapter Summary
- Food Variety: There is a great variety in the food we eat. Different people eat different types of food.
- Ingredients: Each food item is made up of certain ingredients. For example, cooked rice needs raw rice and water. Vegetable curry needs different vegetables, salt, spices, oil, and water.
- Sources of Food:
- Plants: Plants are the main source of food for humans and many animals. We eat various parts of plants like roots, stems, leaves, fruits, and seeds.
- Animals: Animals provide us with milk, meat, and eggs. For example, cows, goats, and buffaloes give us milk. Hens give us eggs, and goats, chicken, fish provide meat.
- Plant Parts as Food:
- Leaves: Spinach, cabbage, mustard (saag).
- Fruits: Apple, mango, tomato, brinjal.
- Stems: Potato, ginger, sugarcane.
- Roots: Carrot, radish, sweet potato.
- Seeds: Wheat, rice, pulses (dals), mustard seeds (for oil).
- Sprouted Seeds: When certain seeds like moong or chana are soaked in water and allowed to germinate, they produce small white structures called sprouts. These are very nutritious.
- Honey: Honey is made by bees from the nectar (sweet juices) collected from flowers. This nectar is converted into honey and stored in their beehives.
- What Do Animals Eat?: Animals have different food habits. Based on what they eat, they are classified into three main groups:
- Herbivores: Animals that eat only plants or plant products. Examples: Cow, goat, deer, elephant.
- Carnivores: Animals that eat only other animals (meat). Examples: Tiger, lion, wolf.
- Omnivores: Animals that eat both plants and animals. Examples: Human beings, dog, bear, crow.
Questions and Answers
1. Do you find that all living beings need the same kind of food?
Answer: No, all living beings do not need the same kind of food. Their food requirements vary depending on their physical characteristics, habitat, and dietary needs. For example, some animals eat only plants, others eat only animals, and some eat both.
2. Name five plants and their parts that we eat.
Answer:
- Wheat: Seeds
- Spinach: Leaves
- Carrot: Root
- Potato: Stem
- Apple: Fruit
3. Match the items given in column A with those in column B.
| Column A | Column B |
|---|---|
| Milk, curd, paneer, ghee | are all animal products |
| Spinach, cauliflower, carrot | are vegetables |
| Tigers and lions | eat other animals |
| Herbivores | eat plants and plant products |
4. Fill up the blanks with the words given: herbivore, plant, milk, sugarcane, carnivore.
Answer:
- (a) Tiger is a carnivore because it eats only meat.
- (b) Deer eats only plant products and so, is called a herbivore.
- (c) Parrot eats only plant products.
- (d) The milk that we drink, which comes from cows, buffaloes and goats is an animal product.
- (e) We get sugar from sugarcane.
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