Laser Experiments You Can Share With Your Homeschool Kids

Laser Experiments You Can Share With Your Homeschool Kids

The word "LASER" stands for Light Amplification by Stimulated Emission of Radiation. A laser can be an optical light source that will emits a concentrated beam of photons. Lasers are usually monochromatic – the light that will shoots out can be typically one wavelength along with coloration, along with can be in a narrow beam.

Laser Experiments You Can Share With Your Homeschool Kids

By contrast, light through a regular incandescent light bulb covers the entire spectrum as well as scatters all over the room. (Which can be Great, because could you light up a room using a narrow beam of light?)

Laser Experiments You Can Share With Your Homeschool Kids

There are about a hundred different types of atoms inside the entire universe, along with they are always vibrating, moving, along with rotating. Think of kids on sugar. When you add energy to these atoms (even more sugar to the kids), they definitely get excited along with bounce all over the place.

Laser Experiments You Can Share With Your Homeschool Kids

When the atoms relax back down tot heir "normal" state, they emit a photon (a light particle). Think of the kids as coming down through their sugar high, along with they all collapse on the couch.

Laser Experiments You Can Share With Your Homeschool Kids

A laser controls the way energized atoms Discharge photons. Imagine giving half the kids sugar, along with picture how they might bounce all over the place (like light through a bulb) when that will took effect. They might be very high-energy among the various other half who were potentially sitting down.

Laser Experiments You Can Share With Your Homeschool Kids

today imagine those sugar kids jumping in unison (a focused laser beam). The sugar-kids are infectious, along with pretty soon, the kids around them are joining in along with sharing in their excited energy. This particular can be how a laser charges the atoms inside the gas medium.

Laser Experiments You Can Share With Your Homeschool Kids

today imagine a cat-flap that will lets out a limited number of kids out at a time, while the rest are bouncing around inside, charging up everyone. that will cat-flap exit can be the laser beam exiting the laser. The atoms remaining inside the laser bounce off mirrors as they charge each various other up.

Before we start, you'll need eye protection – tinted UV ski goggles are great to use, as are large-framed sunglasses, however understand that will these methods of eye protection will not protect your eyes through a direct beam. They are intended as a general safety precaution against laser beam scatter along with spinning mirrors. (Yes, you will be wearing sunglasses inside the dark!)

A very neat addition to the experiments below can be a fog machine. (Rent one through your local party supply store.) Turn that will on, be sure you have Great ventilation, darken the lights, along with turn on the lasers for an outstanding laser experience!

A quick note about lasers: keychain lasers through the dollar store work just fine with these projects. Do not use the green lasers sold in astronomy stores – they are too dangerous for the eyes.

Plastic Bottle Beam: Fill up a plastic water or clean soda bottle with water along with add a sprinkle of cornstarch. Turn down the lights along with turn up the laser, aiming the beam through the bottle. Do you see the original beam inside the bottle? Can you find the reflection beam along with the pass-through beam?

Light Bulb Laser: inside the dark, aim your laser at a frosted incandescent light bulb. The bulb will glow along with have several internal reflections! What various other types of light bulbs work well?

CDs: Shine your beam over the surface of an old CD or DVD. Does that will work better using a scratched or smoother surface? You should see between 5-13 reflections off the surface of the CD, depending on where you shine that will along with how Great your "seeing" conditions are.

Glass along with Crystal: Pass the laser beam through several cut-crystal objects such as wine glasses or clear glass vases. can be there a difference between clear plastic or glass, smooth or multi-faceted? Try an ice cube, both frosted along with wet.

Lenses: If you have an old pair of eyeglasses, pop out the lenses along with try one or both inside the beam to see the various effects. Try one lens, along with then try two in line with each various other to see if you can change the beam. If you have polarizer filters, use two. You can substitute two sunglass lenses – no need to pop out the lenses – you can just use two pairs of sunglasses. Just make sure they are polarized lenses (most UV sunglasses are). Place both lenses inside the beam along with rotate one 0 degrees. The lenses should block the light completely in one configuration along with allow that will to pass through the various other way.

Laser Experiments You Can Share With Your Homeschool Kids

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