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There are three open-ended problems (see below). Students have to develop their own solutions and, at the tournament, present a solution in 10 minutes. The problems are published in October and from then on students can start work. They can (and should) get as much help as they possibly can from anyone and everyone, but in the tournament itself students have to defend their presentation in a science fight. Keep scrolling for more about presentation.
Problem 1
Problem 1
Onion
Prepare a thin layer of onion skin in water. Observe this layer at moderate magnification. Touch a salt powder with a wet needle. Place a few salt crystals in the field of view such that the crystals are visible in the microscope. Observe the behaviour of the onion cells. Perform a similar experiment with sugar crystals and compare the results. Explain the observed phenomena.
Problem 2
Problem 2
2. Microwaves
It has been claimed that you should always place the food on the edge of the microwave carousel, instead of in the middle. Do experiments to determine if this is correct.
Problem 3
Problem 3
pH Indicator
The juice of many fruits or vegetables contains a natural pH indicator that changes colour according to the pH of the solution. Investigate such pH indicator juices and their mixes. Propose the most precise and effective composition and compare its properties with those of common indicators.
Because the problems are open-ended, there is no perfect solution, not even a completely finished solution. At the Science Fight the team needs to present their best solution - 'what we have found out so far'. Most presenters use live demonstrations and a Powerpoint or Slides presentation to present their solution. You might like to start with the template below.
Useful information
Click here for useful information about how to prepare your team.
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