4th Science : Term 1 Unit 4 : Science in Everyday Life
Evaluation | Questions with Answers | Exercises
I. Choose the correct answer.
1. Primary source of energy for the young ones of some animals is
Answer: c) milk
2. Vitamin present in milk that helps us to maintain our bones is
Answer: c) Vitamin-D
3. One of the ancient food items made by human is
Answer: c) bread
4. _______________ is a raw food.
Answer: a) Cucumber
5. A gadget that plays songs is called
Answer: c) music player
II. Fill in the blanks.
1. Cheese and paneer are made from milk.
2. Nutrients are made ready for digestion by cooking.
III. Match the following.
Think about the connections before checking the answers!
1. Music player
Communicates with the world
2. Smart phone
Stores data
3. Electric torch
Plays games
4. Pen drive
Provides light
5. Tablet
Plays music
Check Correct Answers
Answer:
- Music player - Plays music
- Smart phone - Communicates with the world
- Electric torch - Provides light
- Pen drive - Stores data
- Tablet - Plays games
IV. Answer in a sentence or two.
1. Name the food products derived from milk.
Curd, butter milk, ghee, paneer, milk sweets, ice cream and chocolates.
2. Write the names of any three baked foods.
Bread, biscuit, cake.
3. In what ways a smart phone will help you?
Apart from communication, smart phones have the ability to access the internet and store files, take photos, track location and much more.
4. What is food?
Food is one of the basic needs of life. Food provides energy. It is usually made by cooking plants or animals. It contains essential nutrients to keep our body healthy.
V. Answer in detail.
1. Cooking removes harmful microbes. Write down other benefits of cooking.
Cooking causes many useful changes in food.
- It makes nutrients ready for digestion
- It helps to make food in the desired texture, flavour and taste.
- It destroys harmful microbes.
2. Why should we drink milk?
- Milk strengthens bones and teeth.
- It maintains blood pressure.
- It reduces the risk of heart disease.
- It is a source of energy.
VI. Projects.
1. List the gadgets you have used.
Smart Phones, Laptop, Electric Torch
2. Tabulate different kinds of milk products.
Try to Answer
1. Milk is a rich source of Calcium. (Calcium / Iron)
2. Milk contains sugar, protein and fat.
Let us discuss
Look at the things shown in the picture and discuss their uses with your friends.
Try to Answer
1. Bread is low (low / high) fat food.
2. Biscuits are made from wheat flow (wheat flour / rice flour).
3. Cake is associated with birthday celebrations (cake / biscuit).
Activity
Visit a bakery near you and learn about baking of bread, biscuit and cakes.
Try to Answer
Write the names of the given gadgets.
(Web cam, Remote, Speaker, Camera, Headphone)