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प्रश्न
Write the properties of this substance.
Coal
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उत्तर
- Coal is a hard substance.
- It is a fossil fuel that is readily combustible.
- It serves as an energy source.
- It is characterized by the predominant presence of carbon.
संबंधित प्रश्न
Write the properties of this substance.
Flour
What is it made from? Why?
A screwdriver
Very Short Answer Type Question:
Name two gases which are insoluble in water.
Find the odd one out from the following:
Given below are the names of some objects and materials:
Water, basketball, orange, sugar, globe, apple, and earthen pitcher
Group them as:
- Round shaped and other shapes
- Eatables and non-eatables
If in the following figure, iron nail is replaced by a wooden stick, will the bulb glow or not? Justify your answer.
Which among the following materials would you identify as soft materials and why?
Ice, rubber band, leaf, eraser, pencil, pearl, a piece of wooden board, cooked rice, pulses and fresh chapati.
During summer holidays, a group of children collected a lump of salt, green grass, broken glass piece, a small thermocol box, pen, iron nail, glass marbles, hair, naphthalene ball, a piece of sugar candy (mishri) and tried to group them on the basis of properties given in table below. Help them in filling the table.
| Name of the material |
Appearance (Hard/Soft) |
Transparency (Transparent/ Translucent/ Opaque) |
Floats/ Sinks in water |
Soluble/ Insoluble in water |
Arrange the jumbled words to arrive at the appropriate name of material and also write two uses of it.
tcaslpi
Arrange the jumbled words to arrive at the appropriate name of material and also write two uses of it.
soekrnee
