The end of the week is a great time to relax with some science trivia. Will you coast to the weekend with a perfect score?

#1. Chemicals called hormones send different signals around our body. Which of the following hormones is commonly known as the sleep hormone?

Melatonin is commonly known as the sleep hormone, and it is responsible for regulating your sleep-wake cycles.

#2. Which Australian animal is known for its ability to sleep almost all day?

Koalas can sleep for 18 to 22 hours a day!

#3. “REM” is the special name that describes the stage of our sleep where most dreams occur. Do you know what it stands for?

During REM sleep, your eyes move rapidly from side to side and up and down!

#4. PARO is a special robot in the shape of an animal, and it helps people to relax and feel better. Do you know which animal PARO looks like?

PARO is a robot seal used by many care homes and hospitals around the world. The inventor, Dr. Takanori Shibata, says that seals are very cute and have a good shape for holding.

#5. If an engineer asks you to relieve the tension, what should you do?

In engineering, tension is a pulling or stretching force, so if you want to relieve it, stop pulling!

Was I right?


Congratulations! You are a real science whiz!

Oh dear! Better brush up before the next quiz!

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Your email address will not be published.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