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प्रश्न
Write the properties of this substance.
Soil
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उत्तर
- Essentially, the color of soil (brown, yellow, or red) is determined by ferric or oxidized iron compounds.
- In general, the more organic content a soil contains, the darker its color.
- The temperature of the soil increases as the organic content increases, as the darker color indicates that it absorbs more heat.
संबंधित प्रश्न
Write the properties of this substance.
Glass
Write the properties of this substance.
Chalk
Write the properties of this substance.
Salt
Write the properties of this substance.
Ink
What is it made from? Why?
A screwdriver
Very Short Answer Type Question:
Name two gases which are insoluble in water.
Short Answer Type Question:
Metals have lustre (shine). Give the reason why some metal articles become dull and loose their shine.
Long Answer Type Question:
Describe an experiment to prove that water is transparent.
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
