This set of experiments will show you the properties of light, including optics, diffraction, transmission, reflection, wavelength, intensity, and so much more. You’ll discover how light travels in a straight line, how light can turn a corner, split into several beams, and why objects can appear dark even when light is shining right on them.
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Materials: You can order all these parts in one kit called the Tech Light Lab!
- three flashlights
- fingernail polish (red, blue, and green)
- clear tape
- small mirror
- paperclip
- old CD or diffraction grating
- clear pieces to shine your light through
- protractor
- pencil
- ruler
- index cards (3)
- paper
- three objects: one red, one blue, and one green
- aluminum foil
- tack
- water glass
- binder clip (optional)
This is a longer video that has several experiments on it. I left them all together in one long video, as the experiments build on each other, and this set is best done all together. You should be able to complete all of the experiments in about 35-45 minutes. Here are the experiments in the video:
- Diffraction Gratings
- Does Light Travel in a Straight Line?
- Exploring Shadows
- Reflecting Light
- Bouncing Light
- Adding Light
- Bending Light
- Refraction
Download your student worksheet here!
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Choose either the 600 or the 1000.
What size diffraction grating do we need?The place I’m looking at has options for 100, 300, 600 & 1000 lines.
My 13 yo daughter and I loved these experiments. The tech light kit is really helpful- great addition to our supplies. . The videos were so easy to follow- well done. Loved the rainbow shadows- my daughter can’t wait to show this to her friends this weekend at a sleep-over!
I like the rainbows :3
cool expemints all of them