Advertisements
Advertisements
प्रश्न
Sort the given objects as rough or smooth.
| Wet soap | Coir | Feather | Stone |
| ______ | ______ | ______ | ______ |
| Glass ball | Paperboard | Sand paper | Plastic spoon |
| ______ | ______ | ______ | ______ |
Advertisements
उत्तर
| Wet soap | Coir | Feather | Stone |
| Smooth | Rough | Smooth | Rough |
| Glass ball | Paperboard | Sand paper | Plastic spoon |
| Smooth | Smooth | Rough | Smooth |
APPEARS IN
संबंधित प्रश्न
Very Short Answer Type Question:
Suggest two bases on which we can group objects.
Very Short Answer Type Question:
Is oil soluble in water?
Materials which can be bent or stretched easily are called ______.
Look at the pictures and identify the materials by which they are made of:
(paper, clay, glass, wood, plastic, metal rubber, wax
 |
|
 |
|
 |
| ____________ | ____________ | ____________ | ___________ | _____________ |
 |
 |
 |
 |
 |
| ____________ | ____________ | ____________ | ____________ | ____________ |
Soft materials can be early compressed.
Name some examples for shiny materials?
Some of the following statements are incorrect. Find the incorrect statements and correct them.
- The property of metals by virtue of which they can be drawn into wires is called ductility.
- Metals are good conductors of electricity but poor conductor of heat.
- Articles made up of metals produce ringing sound when struck hard.
- Oxides of non-metals and metals are acidic in nature.
- A less reactive metal displaces a more reactive metal from its salt solution in water.
Complete the crossword given in the figure with the help of the clues.
Across
1. Which is generally hard, ductile, malleable and sonorous.
2. A metal is called so it can be drawn into wires.
3. Metal bells are used because of this property.
Down
4. A metal generally used for making jewellery.
5. A metal which is liquid at room temperature.
6. A metal which reacts with acid as well as base to form hydrogen gas.
7. Substances used to enhance the growth of plants.
8. Property by virtue of which metals can be beaten into thin sheets.
Which pair of substances among the following would float in a tumbler half filled with water?
Which of the following materials is not lustrous?
