Science quiz

Mciroorganisms are tiny living things that can be seen only through a _________________________.

When two liquids are mixed but do not dissolve it is called:

• Mixture

• Solution

• Emulsion

• Liquid foam

This is the pile of mouldy food that gardeners keep to put in their soil:

• Compost heap

• Manufactured goods

• Decay

• Mould

Early mirrors were:

• glass

• lake

• polished metal like tin, silver or aluminium

• a car

These steps will prevent us from harmful microorganisms.

Choose the incorrect answer

• Do not brush regularly

• Wash your hands

• Keep meat items in refrigerators

• Do not use knives that was used to cut meat

Good reflectors are:

• Most types of metals

• Shiny and smooth objects

• rough and dull objects

• fibre

A solar eclipse is when the _______________ gets in the of the sun and the _________________.

• Moon, Earth

• Earth, moon

• Sun, Star

• Saturn, moon

These are some of the people who wear light and reflective clothes.

Choose two answers.

• Gardener

• Farmer

• Traffic policemen

• Construction worker

These are factories that evaporate sea water and condense it to make pure water.

• Distillation

• Condenser

• desalination plants

• filtration

When something dissolves in a liquid, we calll it a:

• Solution

• Emulsion

• Mixture

• Liquid foam