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#1. What is the closest star to our Sun?

Proxima Centauri is the closest star to our Sun.

#2. One shape often seen in nature is the hexagon. Which of the following include hexagons?

Honeycomb, snowflakes and insect eyes all include hexagons.

#3. What name do mathematicians use for a diamond shape, like on a playing card?

A rhombus is a 4-sided shape with all sides the same length, and it’s commonly called a diamond.

#4. What colour is the sky during the daytime on the Moon?

The blue sky on Earth is caused by light scattering through air. There’s no air on the Moon, so the sky is always black.

#5. True or false? Inge Lehmann discovered Earth’s inner core by studying earthquake waves.

True! Waves from earthquakes travel through the planet, and some of them reflect off the inner core.

#6. What wavelengths are picked up by the new James Webb Space Telescope?

The James Webb Space Telescope can detect orange and red light, but mostly uses even redder, infrared light.

#7. Padparadscha is the name for the orange variety of what popular gemstone?

Sapphires can come in almost any colour except red (these are rubies). Orange sapphires are among the rarest of all sapphires ranging in colour from a brilliant orange to orange-pink.

#8. A triplane has 3 wings, but how are they arranged?

Triplanes, such as the Red Baron’s Fokker triplane, stack their wings vertically. This gives them lots of lift, but they can’t go very fast.

#9. What’s the scientific name for a low, fluffy, white cloud?

Cumulus clouds are white and fluffy, and usually a sign of good weather.

#10. By what common name are the ‘nares’ known?

Your nares are your nostrils.

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