Tag Archives: homeschool

Just Don’t Step In It

Electricity from cow poo? Done. But don’t take my word for it. Google Green Mountain Dairy.

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A 4th of July message

Unlike spacecraft that use fuels to produce thrust, model rocketry borrows its propulsion system from centuries-old fireworks (the most popular being aerial shells) that use black powder in a (more or less) controlled explosion. Whatever your reason for igniting something … Continue reading

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The Geologic Time Scale

The geologic time scale is split into four major eras–Precambrian, Paleozoic, Mesozoic, and Cenozoic, and are subdivided into periods. The number beside the era or period in the infotoon below shows how many years ago it began. I thought it … Continue reading

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