There are a few funny words in this week’s quiz. You’ll need to be on top of your sci-vocab if you want to score 5/5!


Congratulations! You are a real science whiz!

Oh dear! Better brush up before the next quiz!

#1. What is the heaviest moon in the solar system?

Ganymede weighs about twice as much as Earth’s Moon.

#2. Which of the following is not a liquid?

Iron on the Sun would boil.

#3. What chemical allows plants to make sugar from sunlight, carbon dioxide and water?

Chlorophyll is the green pigment that allows plants to photosynthesise.

#4. How long is the equator?

Earth’s equator is about 40 075 kilometres long.

#5. What type of animal is a manatee?

Manatees are aquatic mammals that look a bit like sea lions. However, they’re actually more closely related to elephants!

Was I right?

If you’re after more fun science for kids, subscribe to Double Helix magazine!


Black lightning bolt in purple circle

3 responses

  1. Mark W Avatar
    Mark W

    Re: Quick Quiz.

    What’s with question 2?

    If iron on the surface of the sun would boil, then isn’t it a liquid?
    Your question asked which is NOT a liquid, how can that be the correct answer?

    Thank You!

    1. David Avatar

      Iron boils at a much lower temperature than the surface of the Sun. So iron on the Sun is a gas, or maybe even a plasma (I’m not sure which). Iron will not stay a liquid on the Sun for long.

  2. Natasha Koplick Avatar
    Natasha Koplick

    Thanks Mark W for asking that question my son and I had the same discussion.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

By submitting this form, you give CSIRO permission to publish your comments on our websites. Please make sure the comments are your own. For more information please see our terms and conditions.

Why choose the Double Helix magazine for your students?

Perfect for ages 8 – 14

Developed by experienced editors

Engaging and motivating

*84% of readers are more interested in science

Engaging students voice