Name two things that can be made from two different materials.
Important Questions on Grouping Materials of Different Kinds
To observe appearance of different items
• Observe carefully a sheet of paper, cardboard, metallic chain, cotton, silk, wood, chalk, copper wire, aluminium foil and steel utensils.
• Which of these have shiny appearance?
• You may add more items to the list from your surroundings.
• Record your observations in the table given below.
Appearance of different items
| S. No | Items | Appearance |
| 1. | Paper | Dull |
| 2. | Metallic chain | Shiny |
| 3. | Cardboard | |
| 4. | Cotton | |
| 5. | Silk | |
| 6. | Wood | |
| 7. | Chalk | |
| 8. | Copper wire | |
| 9. | Aluminium foil | |
| 10. | Steel utensils |
To observe whether different materials are soluble or insoluble in water
• Think about the materials like salt, sugar, chalk powder, sand, kerosene oil, vinegar, lime juice and cooking oil.
• Identify whether they are soluble or insoluble in water.
• Record your observations in the table given below.
Soluble and insoluble materials
| S. No. | Materials | Soluble or insoluble |
| 1. | Salt | Soluble |
| 2. | Chalk powder | Insoluble and settles down |
| 3. | Kerosene oil | Insoluble and forms separate layer |
| 4. | Sugar | |
| 5. | Sand | |
| 6. | Vinegar | |
| 7. | Lime juice | |
| 8. | Cooking oil |
Unscramble the following to form a word or term.
SCPALIT
Unscramble the following to form a word or term.
TDINSYE.
Unscramble the following to form a word or term.
IHSNY.
