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It's all Done with Mirrors
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This fun and simple hands-on astronomy activity illustrates the path of light as it reflects off of mirrors and how this is used in telescopes.
Globe at Night
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In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.
Water Underground
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Many people get water from a source deep underground, called groundwater.
Water Body Salinities I
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In this activity, learners investigate the different salinity levels of oceans, rivers and estuaries.