science

Question 1.

 

Complete the table below.

 

 

                      Objects

                      Made of
  1. Wooden chair

 
  1. Car tyre

 
  1. Bag 

 
  1. Vase

 
  1. Pullover

 
  1. Scarf

 
  1. Raincoat

 
  1. Dress 

 

 

 

 

 

Question 2.

 

Materials obtained from : (plants, animals, earth and sea)

 

 

  1. Wool - ____________
  2. Corals -____________
  3. Sand -_____________
  4. Soil -______________
  5. Iron -_____________
  6. Steel -___________
  7. Leather -___________
  8. Copper -___________
  9. Gold -___________
  10. Cotton -___________
  11. Silver -____________
  12. Rubber -___________
  13. Metals -___________
  14. Rocks -___________
  15. Wood -____________
  16. Aluminium -_________
  17. Plastic -__________
  18.  Nylon -____________

 

 

Question 3.

 

Complete the table below.

 

Materials

Properties

Uses
  1. Steel (metal)

 

 
  1. Copper (metal)

 

 
  1. Gold  (metal)

 

 
  1. Silver (metal)

 

 
  1. Aluminium (metal)

 

 
  1. Wood 

 

 
  1. Rocks 

 

 
  1. Iron 

 

 
  1. Rubber 

 

 
  1. Leather

 

 

            

 

 

Question 4.

 

Complete 

 

Materials

Uses

Properties
  1. Corals 

 

 
  1. Soil 

 

 
  1. Sand

 

 
  1. Wool

 

 
  1. Silk

 

 
  1. Cotton

 

 
  1. Glass

 

 
  1. plastic 

 

 
  1. tins

 

 
  1. elastic

 

 

 

 

 

 

 

Question 5.

 

Complete

 

Items

Made of materials

Mugs

 

Cloth

 

Spectacles

 

Paper

 

Bandages

 

Shoes

 

Bottles

 

Rings

 

Plates

 

Silk sarees

 

Aeroplanes

 

Combs

 

Furniture

 

Handbags

 

Garden hose

 

 

 

 

 

Question 6.

Fill in the blanks with the correct answer.

 

Property                                                 Materials

  1. Waterproof.                               p…………………..
  2. Elastic                                       r…………………..
  3. Hardness                                  i…………………..
  4. Rough                                       s………………….
  5. Transparent                              g………………….

 

 

 

Question 7. 

Name a few objects made of Iron.

1…………………………………

2…………………………………

3…………………………………

4………………………………….

5…………………………………

 

 

 

 

 

 

 

 

 

Gold and Silver

 

Question 8. 

 

Fill in the blanks with the following words given in the brackets.

 

(metals, expensive, leaves, electricity, rust, shiny, earth, gold, soft)

 

  1. Gold and Silver are found in their pure state in the ______________ .
  2. Gold and Silver are scarce and very _____________.
  3. Hence gold and Silver are precious ______________.
  4. Very thin sheets of gold are known as gold ____________.
  5. __________ leaves are used for decorative purposes on wood, glass or ceramics.
  6. Silver is a __________ metal.
  7. Silver is _____________and easy to shape.
  8. Silver is the best conductor of ___________and heat.
  9. Silver does not_____________.

 

  1. A few objects made of golds:___________, _______________ and _________.

 

  1. A  few objects made of silver are: ______________, ______________,____________ and _______________.

Question 9

 

Write TRUE or FALSE in each box.

 

1. Animal skin is tanned to make leather

 

 

2. Clay is a type of soil used mainly in farming

 

 

3. The burning of sugar cane fields affects the environment

 

 

4. Honey bees help to pollinate flowers

 

 

5. Most of the water on planet Earth is Fresh water

 

 

 

Question 10

 

Different types of materials are obtained from plants.

 

Study Figure 5 that shows parts of some trees.  Then answer the questions that follow.

 

Image result for pine tree

Image result for rubber tree

Pine tree

Rubber tree

Cotton plant

A

B

C

 

 

 

 

 

  1. Name the material obtained from.

 

(i) A   ________________________ (ii) B  ______________________  (iii) C _____________________

 

 

  1. The material obtained from A is used to make furniture.

 

(a)       Mention another use of the material obtained from A.

 

            _________________________________________________________________________

 

(b)      Mention one advantage of the material obtained from A.

 

            _________________________________________________________________________

 

(c)       Mention another use of the material obtained from A.

 

  1. Mention one disadvantage of the material obtained from C.

 

_________________________________________________________________________

 

 

 

Question 11

 

Different materials are used to make a car.

 

 

  1. Fill in table 1 to show the material used to make each of the parts labelled A to D in figure 6.  One example has been done for you.

 

 

Part of a car

Material used

Why used

A

tyre

 

 

B

windscreen

 

 

C

seat

 

 

D

door handle

metal

It is strong

Table 1