Handpicking and magnetism

A magnet will pick up a nail, but not a penny because the nail

• has rust on it.
• is lighter than the penny.
• has a sharp point.
• contains iron.

Which of these is attracted to a magnet?

• iron nail
• copper penny
• piece of paper
• notebook

Which of these can move a nail lying on the table without touching the nail?

• A magnet
• String
• A wire
• A ruler

How would you separate a mixture of jelly beans and red beans?

• Handpicking

• Sieving

• Filtration

• Heating

How will you separate a mixture of sulphur powder and iron filings?

• Filtration

• A bar magnet

• Sublimation

• Heating

How would you separate a mixture of yellow split peas and pebbles?

• Handpicking

• Compound

• A bar magnet

• Sublimation