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Water Underground
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Many people get water from a source deep underground, called groundwater.
Canned Heat
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In this activity, learners explore how light and dark colored objects absorb the Sun's radiations at different rates.
Turbidity
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This is an activity about turbidity, or the amount of sediment suspended in water.
Exploring Earth: Temperature Mapping
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This activity models the way Landsat satellites use a thermal infrared sensor to measure land surface temperatures.