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The Big Watermelon Experiment

Everything you need to know

Step one in the Big Watermelon Experiment is to register your school on the main page. This helps us keep track of how many melons we can expect to be imploded!

Exactly how, and at what pace, you move through the rest of the stages below is up to you.

Lesson One – Get Ready…

This is all about getting your heads around what is coming up. There is a little background information (and science) in “Meet the Ingredients”, which explores watermelons and latex rubber bands. There’s also “Getting All Set” which tells you everything you’ll need to think about (and get) for the big implosion day.

Videos

Video One – Meet The Ingredients

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Video Two – Getting All Set

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Lesson Two – Get Set…

Here you’ll find “Teacher’s Tips”, which is pretty self-explanatory. It gives a few insights into things that will make the event run smoothly and help you get the most out of it all.

Videos

Video Three – Teacher Tips

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Lesson Three – Go!

Suggested Timing is during National Science Week – August 14th to the 22nd

The “Implosion Time” video is all about doing the experiment, whereas the “Forces and Flying Fruit” video is all about the forces at play.

The accompanying Forces and Implosions fact sheet has some higher level maths (such as volumes and densities), and even a small companion experiment designed to measure the stretchiness of your rubber bands (scientifically known as the force constant).

Videos

Video Four – Implosion Time

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Video Five – Forces and Flying Fruit

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Lesson Four – Wrap it up

What does all this have to do with the real world? Find out in the video “Going Supernova”.

There are also a couple of companion fact sheets courtesy of Melons Australia about how to grow a watermelon, and a little Melon Maths (aimed at School Years  5 – 6)

Videos

Video Six – Going Supernova

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2021 Experiment Results

We will email everyone a link to upload their experiment results, and then make the data set available for those interested. If you have already imploded your melon(s), keep the results safe, we’ll have this going soon.

2020 Experiment Results

 You can use the results from 2020 to help predict the number of bands for your watermelon. Each dot represents one watermelon, its position is based on just the weight of the melon and the number bands it took to implode it (there maybe better things to compare, we’re working on it).

Graph of Number of Rubber Bands vs Watermelon Weight
The Big Watermelon Experiment is being run by Dr Rob and Experimentary, because we love science (you’re welcome).
Experimentary