Question 1 :
A person needs to separate salt and water from the decanted liquid. So, he transfers this liquid to a kettle and close its lid. Then, he heats the kettle for some time and steam comes out. Now, he takes a metal plate with some ice on it and holds the plate just above the spout of the kettle. What will he observe?

Question 2 :
A person mixes some soil to water in a glass and lets it stand for half an hour. Does some soil settle at the bottom of water?

Question 3 :
Fill in the blanks with appropriate words: Husk from wheat flour is generally removed by ___________.

Question 4 :
State true or false. Grain and husk can be separated with the process of decantation.

Question 5 :
Paheli bought some vegetables such as french beans, lady's finger, green chillies, brinjals and potatoes all mixed in a bag. Which of the following methods of separation would be most appropriate for her to separate them?

Question 7 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6edf59b460d7261e658.jpg' /> How does the farmer separate grain seeds from those bundles of stalks in the given above figure?

Question 8 :
To prepare a dish with a flour, its needed to remove impurities and bran that may be present in it. What do we do?

Question 10 :
A person needs to separate salt and water from the decanted liquid. So, he transfers this liquid to a kettle and close its lid. Then, he heats the kettle for some time. Will any steam comes out from the spout of the kettle?

Question 11 :
State whether the following statements are TRUE or FALSE : Water can be separated from salt by evaporation.

Question 12 :
A person makes a mixture of dry sand with sawdust or powdered dry leaves and keeps this mixture on a plate or a newspaper. Now, he takes the mixture to an open ground and stands on a raised platform. Next, he puts the mixture in a plate or sheet of paper and holds the plate or the sheet of paper containing the mixture, at his shoulder height while tilting it slightly, so that the mixture slides out slowly. Is there a component that blows away?

Question 13 :
Lemonade is prepared by mixing lemon juice and sugar in water. You wish to add ice to cool it. Should you add ice to the lemonade before or after dissolving sugar?

Question 15 :
How would you obtain clear water from a sample of muddy water?