Q: What are substances attracted to magnets called?
A: Magnetic substances
Q: What is evaporation?
A: The process in which a liquid gets converted into its vapor
Q: How can oil and water be separated?
A: By decantation, as oil forms a separate layer on top of water
Q: What is the purpose of using a tea strainer?
A: To filter tea leaves from tea through the process of filtration
Q: How can muddy water be cleared?
A: By filtering it through a cloth or filter paper
Q: What is the difference between the residue and filtrate in filtration?
A: Residue is the solid left on the filter, while filtrate is the liquid that passes through
Q: How do fishermen use filtration in their work?
A: Water drains out through the mesh of fishing nets, trapping the fish
Q: What is a modern machine used for threshing and winnowing?
A: A thresher
Q: In Ayurveda, how are herbs often prepared?
A: By drying them in the shade to evaporate excess water
Q: How can iron nails be separated from sawdust?
A: Using magnetic separation
Q: What is the principle behind using a sieve?
A: It separates particles based on their size
Q: How is salt separated from a salt solution?
A: By evaporating the water
Q: What method is used to separate cream from milk?
A: Churning
