There are some giant things lurking in these questions. Some of them are easy to spot, and others are hidden. Can you uncover all the answers?
Fe is the chemical symbol for iron.
High tides are about 12 hours and 25 minutes apart.
A googolplex is one with a googol zeros. A googol is one with 100 zeros.
Ostriches can grow to 2.8 metres tall and weigh up to 145 kilograms.
The tallest tree in the world is a redwood tree called Hyperion, in California. It’s more than 115 metres tall.
Congratulations! You are a real science whiz!
Oh dear! Better brush up before the next quiz!
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