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- 1. Multiple Choice
How are grain seeds removed from their stalks?
Sieving
Winnowing
Threshing
All of the above
- 2. Multiple Choice
What is a mixture?
A chemical combination of two or more different substances.
A physical combination of two or more different substances.
A chemically pure substance.
A special type of solution
- 3. Multiple Choice
When the solute dissolves into a solvent and disappears it is called a _____________.
MIxture
Solution
Solvent
None of the above
- 4. Multiple Choice
Pure substances are made up of the same kind of atoms.
True
False
- 5. Multiple Choice
Which of the following is not a homogeneous mixture?
Oxygen in water
Tea
Sugar and water
Fried rice
- 6. Multiple Choice
Lemonade is a special mixture called a
substance
solution
plasma
ingredient
- 7. Multiple Choice
A fruit salad is a
solution
mixture
- 8. Multiple Choice
Which of the following is essential to perform winnowing activity?
Wind
Water
Magnet
Filter paper
- 9. Multiple Choice
While preparing chapatis, Nitya found that the flour to be used was mixed with wheat grains. Which out of the following is the most suitable method to separate the grains from the flour?
Threshing
Sieving
Winnowing
Filtration
- 10. Multiple Choice
Hand picking method is effective in
solid mixture
Liquid mixture
Gaseous mixture
None of these
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