Free printable worksheet
Class 8 · General Science · 19 Aug 2026
1.
Which separation method is best suited for removing small stones from a bag of rice during kitchen preparations?
[1 mark]
2.
Match the separation method with its most suitable application:
[2 marks]| Column A | Column B |
|---|---|
| 1. Sieving | a. Removing tea leaves from tea |
| 2. Filtration | b. Separating sand from pebbles |
| 3. Winnowing | c. Separating husk from wheat grains |
| 4. Magnetic separation | d. Separating iron pins from paper clips |
Answer: __________________________________________
3.
Excessive use of fertilizers in farms near a village pond often leads to ______, a process where excess nutrients cause an overgrowth of algae that depletes oxygen in the water.
[1 mark]
(a)
Define light pollution in the context of urban areas in India.
[1 mark]
(b)
Why is the use of leaded petrol considered a major cause of health issues in children living near busy highways?
[2 marks]
5.
Compare the properties of the element Sodium with the compound Sodium Chloride. Are their properties the same?
[3 marks]