Instructional Video3:29
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Be Smart

Why Seasons Make No Sense

6th - 12th
Do the summer and winter solstices mark the beginning of the warmest and coldest quarters of the year? After an introduction of scientific concepts related to seasons, an informative video explains how the Romans are responsible for...
Instructional Video5:42
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How Science Defines A Year

6th - 12th
How do we define a year? Science has multiple definitions depending on if you use a sidereal year, a tropical year, or an anomalous year. A helpful resource explains all three, as well as how the human body changes over the course of the...
Instructional Video2:09
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The Equinox Isn't What You Think It Is

6th - 12th
Most people believe the equinox is the day with an equal amount of night and day, but they are wrong. The video explains what an equinox actually is, why day and night aren't equal on that day, and what an equilux is.