LEARNING MATTERS
Dante Alighieri Poetry Competition 2021
IT’S SCIENCE WEEK AT CRC - August 23 – 27
Have you ever wondered how our planet Earth can continue to provide enough food to feed almost 8 billion people worldwide?
This year, the school theme for National Science Week is 'Food: Different By Design'. Australia is a leader in food production, and it is science that can supercharge our food future.
CSIRO is further reinventing Australia as a leader in food innovation, including developing uniquely Australian plants that can produce omega-3 fatty acids, usually sourced from the world's wild fish stocks. It's a win for the environment, the Australian economy and for global health, with omega-3 oils a key component for childhood development. We can 3D print food, creating new techniques and textures for global consumers to enjoy. (The Honourable Karen Andrews MP Minister for Industry, Science and Technology)
What else can Science do? Keep an eye out in the student bulletin for awesome activities for you to try at home, the Daily Quiz, virtual excursions, etc.
To get the ball rolling, Education Perfect are running the EP ANZ Science Championships 2021.
All CRC students are automatically registered to participate – beginning August 16 at 4pm and ending August 23 at 4pm. The more questions you answer the more points you earn.
Prizes:
- 1st Place: $250 GiftPay Voucher
- 2nd Place: $150 GiftPay Voucher
- 3rd Place: $100 GiftPay Voucher
- 4th-10th Place: $50 GiftPay Voucher
Compete against students from all over Australia and New Zealand. DO YOU HAVE WHAT IT TAKES TO BE A SCIENCE CHAMPION
What you need:
- vegetable oil
- food colouring
- effervescing (fizzy) aspirin or vitamin tablets
- a glass tumbler
What to do:
- Fill a glass tumbler about 1/3 full with water.
- Add a few drops of colourful food dye.
- Slowly pour vegetable oil into the glass so that it floats on the water, until the glass is almost full (tipping the glass a little helps it form a neat layer).
- Drop a tablet into the glass.
- Cue disco lights and music.
Safety note: Don’t dispose of the oil and water down the sink. Pour it into a container that can be sealed before putting it in the bin. Better yet, add it to your compost.
What’s happening?
The bubbles in the water are carbon dioxide gas, formed when sodium bicarbonate and citric acid in the tablets react in the water:
acid + carbonate –> carbon dioxide + salt + water
C6H8O7 + 3NaHCO3 –> 3CO2 + Na3C6H5O7 + 3H2O
The bubbles take globs of coloured water with them up through the oil to the top of the glass. The gas bubbles burst at the surface and the coloured water drops then fall back down through the oil. You can recharge the lava lamp with another tablet when the first one has finished reacting.
YEAR 7 VCD DESIGN CHALLENGE




