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Lesson Plan
Curated OER

Meet the Neighbors: Planets Around Nearby Stars

For Teachers 11th - 12th
Students explain why a transiting planet causes a periodic dimming in the light from its parent star. They determine the radius of a planet, and its orbital distance, by analyzing data and manipulating equations. Students compare the...
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Worksheet
Curated OER

The Speed of Galaxy Q2125-431

For Students 9th - 10th
In this speed of a galaxy learning exercise, students use a given equation for the speed of an object and they use the spectral lines for Hydrogen Alpha and Beta from the Seyfert galaxy to answer 6 questions. They determine the observed...
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Lesson Plan
Curated OER

Determining Red-Shift in a Receding Star

For Teachers 9th - 12th
Students practice manipulating algebra formulas with more than one variable. They examine the topics of velocity, wavelength and frequency. They determine the amount of red-shift in a receding star.
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Lesson Plan
Curated OER

Sizing Up Hail

For Teachers 3rd - 12th
Students participate in an estimation and measurement activity to improve their estimates of the size of hail. They hold several different sized wooden balls and record their guesses of the ball's diameters. They compare their estimates.

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