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The solar ball uses condensation to produce clean water. Teaching about the water cycle and going through the science behind how that works

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As it doubles as a shipping container for grain and other food staples in addition to water, you could discuss with your class nutrition and what is essential for the body. This would include the food staples in addition to why we need water. You could also incorporate the survival needs as well.

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Might actually be possible to have the class create their own solar ball. seems like a simple design

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Might actually be possible to have the class create their own solar ball. seems like a simple design

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Using ultraviolet light and other light rays to experiment and see what they will do/will not do to water and maybe other liquids too

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Teach about not only does this provide clean drinking water, but it also cuts down on gas emissions

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Discover the different steps in the Lifestraw filter that allows it to clean water in such a small area.

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Makes transport to water much easier which is ideal for people in remote places

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Makes transport to water much easier which is ideal for people in remote places

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Look at how the bike could be used for community support and enriching the communities water supply, specifically in remote locations. Students can also look at how the bike can be used by a variety of age groups and how that can effect the community

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Applicable under any of these columns, but discussing the advantages and disadvantages between these various filtration methods with the class would be interesting!

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Applicable under any of these columns, but discussing the advantages and disadvantages between these various filtration methods with the class would be interesting!

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Ceramic is naturally equipped with small holes to act as a filter. You can discuss other materials that make good filters.

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purchase (or get donated) several different types of ceramic filters and test their different flow rates. make one as a class and see how it compares. As most of these filters are powered by gravity, try changing the hight difference between the clean and dirty water to see how that impacts flow rate

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May as well purify some water while you're at it

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this website has a great description of the product works.
could potentially be recreated in the classroom, using wide range of materials - the only thing I'm unsure of would be the filter?
https://science.howstuffworks.com/environmental/green-tech/remediation/lifestraw1.htm