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Many people get water from a source deep underground, called groundwater.

Learners observe a bottle containing water and oil. They are invited to pick up the bottle and mix the contents together.

In this physics activity, learners will explore buoyancy.

Glare from the sun and ripples from the wind can make it hard to see what's below the surface of a body of water.

In this physics activity (page 10 of the PDF), learners will explore how energy from moving water can be used.

In this activity (on page 2 of the PDF), learners explore surface tension by adding pennies to cups which are "full" of plain water or soapy water.