METHODS IF SEPARATION

What happens in an evaporation dish?

• Water stays with the mixture.

• Water becomes a solid

• Water turns into water vapor and is no longer in the dish

• More water appears

Filtration is a method to separate the components of a

• mixture of a liquid and an insoluble substance

• pure substance

• both a and b

• solution

Raju's mother told him that most of the junk food contains lots of fats. Raju thinks that the amount of fats in a chocolate is very big. Is Raju right?

• No. It contains large quantity of water.

• No. It contains large quantity of carbohydrates.

• Yes. It contains large quantity of fats

• No. It contains large quantity of vitamins and minerals

condensation.....

• let all the impurites die

• let all the water come back into the place

• how clouds are made

• how u make water

Now the big question how do they seprate salt from water

• sieving

• filtaration

• evaporation

• sedimentation

A solution which cannot dissolve more solute at a given temperature

• Solution

  Filtrate

  Saturated solution

  Unsaturated solution

• Filtrate

• Saturated solution

• Unsaturated solution

Which of the following is essential to perform winnowing activity?

• Wind

• Water

• Magnet

• Filter paper

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

Hand picking method is effective in

• solid mixture

• Gaseous mixture

• Liquid mixture

• None of these

The process of settling down of particles of a solid in a liquid is

• Sublimation

• Filtration

• Decantation

• Sedimentation