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What's Getting Through To You?

What's Getting Through To You?

In this activity, students are introduced to light and colored gels (filters). Students make and test predictions about light and color using gels; learn about the importance of gels (filters) to astronomers; then analyze images taken with regular and infrared cameras to see that objects opaque to light at one wavelength, may be transparent to light of a different wavelength. Section 1 of the activity guide includes teacher notes, information on...

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