, 29 January 2020
Here’s a quiz to sink your teeth into! How much do you know about crunchy science?
Congratulations! You are a real science whiz!
Oh dear! Better brush up before the next quiz!
Water pressure against the cellulose in cell walls is responsible for much of celery’s crunch. Cellulose is also what makes wood hard.
The letter P represents phosphorus. Potassium is K, polonium is Po, and tungsten is W.
Extruded foods are forced through a hole in order to shape them. CSIRO experts might have been involved in the invention of the iconic Australian extruded snack, Twisties!
Rubies are a variety of corundum, but it’s traces of chromium that stain rubies their red colour.
The letters in CRISPR stand for clustered regularly interspaced short palindromic repeats. CRISPR are special pieces of DNA that can be used to help edit an organism’s genome.
If you’re after more fun science for kids, subscribe to Double Helix magazine!
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13 February, 2020 at 9:46 am
your results of quiz are not working for participant to see where they went wrong. don’t like the design. 🙁
13 February, 2020 at 9:49 am
I’m sorry you’re having trouble with our quizzes.
The answers to this quiz are:
b) water pressure
d) phosphorous
d) all of the above
b) rubies
a) clustered
22 July, 2021 at 11:37 am
IT works fine now but I got 3/5, good thing I didn’t see you’re answers above. (: