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About H2O Worldwide

Help the world one math problem at a time. Every time a question is answered correctly we donate an ounce of water through Charity: Water to help provide impoverished areas around the world with clean water. Get started by choosing a category on the left!

In many places around the world there is no access to clean water. Dirty water is the only option. Clean water is not a guarantee across the globe. Help unite the world against dirty water. Clean water is a natural human right. Not only is it a resource, clean water is a way of life. Clean water should be enjoyed by all of humankind. Answer math questions to help us achieve this goal.
Read More about the Water Crisis