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10 questions
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- Multiple ChoicePlease save your changes before editing any questions.
How are grain seeds removed from their stalks?
Sieving
Winnowing
Threshing
All of the above
- Multiple ChoicePlease save your changes before editing any questions.
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
- Multiple ChoicePlease save your changes before editing any questions.
When the solute dissolves into a solvent and disappears it is called a _____________.
MIxture
Solution
Solvent
None of the above
- Multiple ChoicePlease save your changes before editing any questions.
Pure substances are made up of the same kind of atoms.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
Which of the following is not a homogeneous mixture?
Oxygen in water
Tea
Sugar and water
Fried rice
- Multiple ChoicePlease save your changes before editing any questions.
Lemonade is a special mixture called a
substance
solution
plasma
ingredient
- Multiple ChoicePlease save your changes before editing any questions.
A fruit salad is a
solution
mixture
- Multiple ChoicePlease save your changes before editing any questions.
Which of the following is essential to perform winnowing activity?
Wind
Water
Magnet
Filter paper
- Multiple ChoicePlease save your changes before editing any questions.
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
- Multiple ChoicePlease save your changes before editing any questions.
Hand picking method is effective in
solid mixture
Liquid mixture
Gaseous mixture
None of these