CBSE Class 6 Science - CH4: Sorting Materials Into Groups (Worksheet) (#cbsenotes)

Sorting Materials Into Groups

Worksheet

Q1: Identify from the following items which are soluble or insoluble in water?

ⅰ Salt
ⅱ Kerosene Oil
ⅲ Sand
ⅳ Sugar
ⅴ Chalk Powder
ⅵ Lime Juice
ⅶ Cooking Oil
ⅷ Vinegar

Q2: Materials are classified on the basis of appearance, hardness, solubility, density and transparency. Write down properties for the following items:

ⅰ Metals
ⅱ Plastic
ⅲ Wood
ⅳ Glass

Q3: Fill in the blanks from the choices given along with.

ⅰ ________ materials allow light to pass through them. (Transparent / Translucent)

ⅱ A substance which dissolves completely in water us cakked ________ substance. (soluble / insoluble)

ⅲ A material having higher density than water will _______. (float/ sink)

ⅳ Materials which can be compressed or cut easily are _______. (soft/hard)

ⅴ ________ can be opaque or transparent. (Plastics / Metals).

ⅵ Carbon Dioxide is _______ in water. (soluble/insoluble)

ⅶ Rain coats and Umbrellas are made of water __________  materials. (absorbing / proof)

Q4:  State whether the following are true of false.

ⅰ Orange juice is soluble in water.
ⅱ Generally plastics are transparent.
ⅲ CO₂ gas is soluble in water.
ⅳ Iron is transparent.
ⅴ Light cannot pass through translucent materials.

Q5: Name a liquid metal?

Q6: Name two miscible liquids.

Q7: Name two immiscible liquids.

Answers:
1:
ⅰ Salt - Soluble
ⅱ Kerosene Oil - Insoluble
ⅲ Sand - Insoluble
ⅳ Sugar - Soluble
ⅴ Chalk Powder - Insoluble
ⅵ Lime Juice - Soluble
ⅶ Cooking Oil - Insoluble
ⅷ Vinegar - Soluble

2:
ⅰ Metals: Shiny, hard, insoluble, high density, opaque
ⅱ Plastic: Dull appearance, hard and soft, insoluble, lower density, water
ⅲ Wood: Dull, hard, insoluble, low density, opaque
ⅳ Glass: Shiny, hard, insoluble, high density, transparent or translucent.

3:
ⅰ Transparent
ⅱ soluble
ⅲ sink
ⅳ soft
ⅴ Plastics
ⅵ soluble
ⅶ proof

4:
ⅰ True
ⅱ False
ⅲ True
ⅳ False
ⅴ False

5: Mercury

6: Alcohol and Water

7: Oil and Water