Clik here to view.
Rainbow – A Quick Quiz
CSIRO is marching in Mardi Gras again this year (2 March)! To celebrate the kaleidoscope of human diversity, we’re flying this colourful rainbow quiz. QUIZ START CSIRO staff celebrate diversity at...
View ArticleBrainteaser: Egg-cellent farming
Difficulty: FunFarmer Wallace packages his eggs in cartons that hold a dozen eggs (there are 12 eggs in a dozen).In March, he sells 5 standard orders of eggs to the local grocery store. Each standard...
View ArticleClik here to view.
Launch a stomp rocket
Houston, we have lift-off! This fun activity will turn your local stomping grounds into a rocket launch facility. You will need 2 one-metre lengths of 15 mm wide PVC pipe 2 15 mm PVC tee junctions,...
View ArticleClik here to view.
Zap off, mozzies!
No one likes mosquito bites, and certainly not the ones that spread diseases. In a new study, scientists have found a way to protect us from yellow fever mosquitoes using static electricity. Static...
View ArticleWater – A Quick Quiz
Well, well, well, we’re working with water – just in time for World Water Day (22 March 2024)! Dive right in, wade through the questions and go for a splashy 5/5! QUIZ START The post Water – A Quick...
View ArticleSecret pairs
Difficulty: Extreme!Lavonne is testing a secret code with her friend Jack. First, she picks 3 different secret numbers between 1 and 9. Then she finds the sum of each pair of numbers. For example,...
View ArticleClik here to view.
Potpourri preservation
Learn about the different parts of plants, as well as the science of preservation, by making your own pretty potpourri. You will need Flowers – we used roses Orange Cinnamon stick Vegetable peeler...
View ArticleGoing into orbit – A Quick Quiz
Around and around we go with this interplanetary orbit quiz! Will you run ellipses ‘round these questions or will you find yourself tumbling back to Earth? QUIZ START The post Going into orbit – A...
View ArticleBrainteaser: Skipping stairs
Difficulty: TrickyFlora likes to run up stairs as fast as she can! Sometimes she lands on every stair and sometimes she skips a stair, taking two in one stride. And sometimes, she mixes it up,...
View ArticleClik here to view.
Shipwreck, found!
SS Nemesis disappeared in 1904 Credit: State Library of Victoria For 120 years, the SS Nemesis lay in an unknown location at the bottom of the ocean. In 1904, the 73-metre steamship disappeared in a...
View ArticleClik here to view.
Make an underwater map
Bathymetry is the study of the ocean floor. And it creates a lot of maps! These maps record the changing depths of the ocean and are often beautiful to look at. Why not make your own? You will need...
View ArticleNatural disasters – A Quick Quiz
Look out! This quiz is meant to shake you up… unless of course you can rise like a tsunami and score a 5/5. QUIZ START The post Natural disasters – A Quick Quiz appeared first on Double Helix.
View ArticleClik here to view.
Make sky in a jar!
Have you ever wondered why the sky is blue in the morning, and then orange in the evening? Incredibly, milk can show us why! You will need Smooth sided plastic jar, like a tupperware container Water...
View ArticleClik here to view.
Egg-ceptional Adaptations
Amy Dou is the winner of the 2024 Australian Science Teachers Association i3 Awards in the Year 5-6 Investigations category. The i3 awards are an annual, Australia-wide science fair celebrating...
View ArticleClik here to view.
Reinventing Australia’s emergency call service
EmSafe ensures that callers use the correct emergency number no matter what country they’re in.Credit: Rahul Kumar and EmLoop Software Limited Rahul Kumar is the winner of the 2024 Australian Science...
View ArticleMassive multiplication
Difficulty: FunSienna’s teacher is writing up a wicked problem on the board. First, the teacher writes all the numbers from 1 to 99. Then they erase 10, 20, and all the other numbers that end in 0....
View ArticlePolymer Banknotes – A Quick Quiz
See if you have a wealth of knowledge about money in this quiz about polymer banknotes. Hopefully you can hit the jackpot with a 5/5! If you need a hint, grab a banknote and investigate for yourself....
View ArticleBrainteaser: Magic trick tricks
Difficulty: TrickyMiguel hopes to become a magnificent mathematical magician. For his first trick he wants to present a standard 52-card deck and dramatically draw a face card (Jack, Queen or King)....
View ArticleClik here to view.
Colour changing flowers
Here’s a fun way to make flowers ANY colour that you want! They make a great gift for birthdays and holidays like Mother’s Day. You will need Flowers with white petals (white carnations or...
View ArticleClik here to view.
Aerogard through the ages
A child being sprayed with Aerogard Credit: CSIRO Aerogard protects us from mosquitoes and other pesky bugs whilst outdoors. But did you know that it was originally made to keep blowflies away from...
View Article