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Learners take on the role of environmental engineers as they design water filters.

In this activity on page 10 of the PDF, learners detect the amount of energy that can flow through a sodium chloride electrolyte solution with a light sensor.

This activity (on page 2 of the PDF under SciGirls Activity: Water Slides) is a full inquiry investigation into speed and motion and takes place at a water park.

In this water pollution activity, learners create pond water cultures and investigate the effects of adding chemicals or natural nutrients.

In this activity on page 7 of the PDF (Water in Our World), learners make their own water treatment systems for cleaning water.

Water treatment on a large scale enables the supply of clean drinking water to communities.

This is an activity (located on page 3 of PDF under Nasturtium Leaves Activity) about surface tension.