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Interactive Grade 6 Science Weather Systems & Forecasting Test

Science · Grade 6 · 15 questions · 10 min

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Weather Systems & Forecasting

What is 'storm surge' and which weather event most commonly causes it in Australia?

A.An abnormal rise in sea level along a coast caused by the strong winds and low pressure of a tropical cycloneB.A sudden increase in river flow caused by heavy rainfall during a thunderstorm inlandC.The large ocean waves created when an underwater earthquake triggers a tsunami near a stormD.A rapid increase in rainfall associated with a cold front passing over a coastal city

Which of the following best explains why thunderstorms are more likely to form on hot, humid afternoons than on cool, dry mornings?

A.Cool air is denser and stops clouds from growing in the morningB.Hot, humid air rises more rapidly and contains more water vapour, providing the energy and moisture needed for large storm clouds to formC.The sun's UV rays in the afternoon directly create electrical charges that cause lightningD.Wind speeds are always higher in the afternoon, pushing clouds together to form storms

What happens to the weather on the 'lee' (sheltered) side of a mountain range after air has dropped its rain on the windward side?

A.The air warms up as it descends and the lee side is generally drier — this is called a rain shadowB.The air cools further and produces even more rain on the sheltered sideC.The air remains at the same temperature and humidity as before crossing the mountainD.The air becomes wetter on the lee side because it collects moisture from the mountain snow

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