Here are the answers to last weeks quiz…

Quiz answers
1. Box jellyfish have 24 eyes arranged in four clusters, giving them six eyes on each side.
2. A newborn kangaroo is about two centimetres long, the size of a jellybean.
3. c) The red food colouring colour (120) is made by crushing cochineal insects.
4. Most ladybird beetles are predators which eat soft-bodied scale insects.
5. Folate helps protect against Alzheimer’s disease. CSIRO scientists have developed a new system to screen for other protective compounds using yeast species

How did you go?

New quiz questions from CSIRO Science by Email

Have a go at these…

Leave me a comment if you think you know the answers!

Quiz questions
1. How many eyes does a box jellyfish have?
2. How big is a newborn kangaroo?
3. The red food colouring colour (120) is made from a) raspberries, b) plant seeds, c) insects.
4. What do most ladybird beetle species eat?
5. Which vitamin found in leafy green vegetables can protect against Alzheimer’s disease?

Good Luck!

CSIRO Science by Email Quiz

Hello everyone and welcome back!

I had a lovely holiday although the weather in Australia has been very wild and woolly so far this year.

To get our brains back into gear and get us thinking, here are the CSIRO Science by Email quiz questions sent to us this week.

Quiz questions

1. Which planet in our solar system holds the title for the longest-lived cyclone on record?
2. Do photovoltaics produce direct current or alternating current?
3. What is the defining mineral with the value of 1 on the Mohs hardness scale?
4. What is the term used in biology to describe fish that stay together for social reasons?
5. What marine organism is usually associated with ‘red tides’?

I will post the answers next week.

If you think you know the answers, please let me know in the comments. I would love to hear from you!

If you don’t currently subscribe to the CSIRO Science by email check it out on

Each week an email with cool news, facts, experiments, links and of course, the quiz, pops into your (or Mum and Dad’s) inbox.

It is well worth a look, loads of fun and cool science! 🙂