This quiz is all about rivers. Let your knowledge flow and see how many questions you can get right!
#1. What’s the name for new land and islands that form at the mouth of a river?
A river delta is formed when sand, silt and other sediments collect at the mouth of a river. It’s called a delta because some deltas are shaped like a capital delta: Δ.
#2. The Todd River in Alice Springs is ephemeral, but what does ephemeral mean?
An ephemeral river only runs after rain. Most of the time it’s completely dry.
#3. When a river goes around a bend, where does it erode fastest?
Rivers erode fastest on the outside of a bend. Over time, this makes bendy rivers even bendier.
#4. All rivers in Australia flow into the ocean.
False. Rivers that flow into Kati Thanda–Lake Eyre never flow out again, because the lake is below sea level!
#5. There are rivers of liquid methane on Titan, but where is Titan?
Titan is the largest of Saturn’s moons. It has a thick atmosphere and has seas, rivers and rain made of methane.
Congratulations! You are a real science whiz!
Oh dear! Better brush up before the next quiz!
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