Science pt3 revision quiz

True or false : Spinning is a process of making fibres.

• True

• False

When milk, cooled after boiling, is poured onto a piece of cloth the cream is left behind on it. This process of separating cream from milk is an example of ______.

• Burning

• decantation

• None of these

• filtration

A device that is used to break an electric circuit is called____________

• switch

• Scissors

• positive terminal and negative terminal

• Electric cell

In olden days, sailors used to find direction by suspending a piece of ??

• horse-shoe magnet or cylindrical magnet

• iron and rocks

• Bar magnet or Loadstone

• Loadstone or Cylindrical magnet

Water drops appear on the outer surface of a glass containing cold water due to ??

• Evaporation

• Precipitation

• Codensation

• because the glass is crying

• Infiltration

pick the odd one out.

• Cotton

• Jute

• Nylon

• wool

True or False : A mixture of powdered salt and sugar can be separated by the process of winnowing.

• True! True!! True!!!

• False

True or False : Electric current can pass through a sheet of thermocol.

• True of course

• False of course

Name the shepherd after which magnet was named

• Magnetite

• Magnes

• Magnews

• Mignets

Fog appearing on a cold winter morning is due to

• Evaporation

• Precipatation

• Codensation

• Transpiration