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ultra violet                                             

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ultra violet                                             

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3.
I.Ultra violet rays can help humans by helping c

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it works as a way that you can see more throught the goggles you can see people or animals through smoke or you can know where a heat source is coming from infaread can penatrate just about eveyrthing but glass its house the greehosue effect works it stops the infaread from comthng through

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They are used for radio and television broadcasts, microwave ovens, cell phone transmissions, and radar. 

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Light is a mid-wavelength electromagnetic wave that has three different kinds of light called visible light, infrared light and ultraviolet light and red light has the longest wavelength.
- Light includes visible light,  infrared light and ultraviolet light.
- Visible Light is the only light people can see
- When all wavelengths are combined, as they are in sunlight, visible light appears white.
- How does light power a calculator?
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3. -Radio Waves are the broad range of electromagnetic waves with the longest wavelengths and lowest frequencies.
-Radio waves have the least energy of all electromagnetic waves.
-They are used for radio and television broadcasts, microwave ovens, cell phone transmissions, and radar.
2. -Can you hear radio waves?
-What makes radio waves have a higher frequency?
1. Radio waves are used for things such as tv and cell phones. They are the least energetic of all the waves and they are the broad range of all the electromagnetic waves.

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Radio Waves can be put into two different categories Am waves and Fm waves Am waves encoded by their amplitude and they use longer wavelengths which means that it bounces off our hemisphere to where it will stay on earth.
While Fm waves are encoded using their high frequency and some of the waves are sent into space.
Fm waves usually sound clearer than Am because they don't bounce off the earths hemisphere and instead it goes straight into space or straight into your radio.

Do you listen to Am or Fm Radio?
Is their any combination or the radio or is their a third radio wave that will be invented eventually?
1. Am radio is harder to udnerstand while it is encoded using amplitude
2. Fm radio is easier to understand and is encoded by its frequency
3. Am waves bounce off the earth's hemisphere while Fm waves go straight through.

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Ideas
-Microwaves have the shortest wavelength.
and are the highest frequency radio waves.
-Microwaves are also in cellphone transmission and radars.
-Microwaves have more energy than a lot of other waves.
Questions
- Do all cell phones use microwaves?
-How do radars use microwaves?
Summary
Microwaves are used for many different things in our everyday lives and we don't even know. Even if you are not using your cell phone, it still is sending out microwaves to cell phone towers. Overall, microwaves can be used for many different things that we didn't even know used those waves.

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Most Important ideas:
1. Microwaves: they have the longest wavelengths, the lowest frequencies, least amount of energy.
2. X-rays/Gamma Rays: shortest wavelengths, highest frequencies, greatest amount of energy.
3. Waves in between these two extremes are commonly called light.

Two Questions:
1. What waves have the lowest amount on energy?
2. Will the properties of electromagnetic waves influence how the different waves behave?

Summary
1.

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Main points
1. Gamma rays are the most energetic of all electromagnetic waves.
2. X rays/Gamma waves have the shortest wavelengths
3.  X-rays are high-energy electromagnetic waves

2 Questions
1. How are X-Rays and Gamma rays different from other
2. Why can Gamma rays go through every thing

Summary
1. X-Rays and Gamma rays are the strongest type of Electromagnetic waves, and they can give you cancer. But Gamma rays can also treat cancer by sending gamma rays the site of the cancer

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3 Main points
1. X rays/Gamma waves have the shortest wavelengths
2. Gamma rays are the most energetic of all electromagnetic waves.
3.  X-rays are high-energy electromagnetic waves
2 Sample Questions
1. Why are X-Rays and Gamma rays different from other electromagnetic waves?
2. Why can Gamma rays go through what X-rays can't
1 Sentence Summary
1. X-Rays and Gamma rays are the strongest type of Electromagnetic waves, they are most energetic, and they can damage DNA, Thus making them harmful to humans.

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1. How did scientists discovered Ultraviolet light.
2. How does UV-R affect our skin?
3. I'll rate it around 4 because it basically covered what's the definition how it is used plus, they added a visual presentation which made it a lot better. though, I believe it could be better by adding more facts that aren't mention on a basic conversation or any type of ultraviolet lessons.

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EM Spectrum Introduction

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X Rays and Gamma Rays Reading and Images

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X Rays and Gamma Rays Reading and Images

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NASA | GLASTcast | Episode 2:  What are Gamma Rays?

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Want more? Subscribe to NASA on iTunes! http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=283424434 For more info: http://www.nasa.gov/GLAST/ NASA's GLAST mission is an astrophysics and particle physics partnership, developed in collaboration with the U.S. Department of Energy, along with important contributions from academic institutions and partners in France, Germany, Italy, Japan, Sweden, and the U.S.

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Uploaded by ScienceAtNASA on 2010-05-25.

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Reading

List the three most important ideas with brief explanations from your reading.

Write two questions about your section (one basic, one advanced)

Write a one-sentence summary of about 30 words on the section in your own words.

Presentation

Present your post to the class.

Explain diagrams.

Share points from video and explain reason for the rating.

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Individual

Read assigned section individually.

Review diagrams.

Note most important information or confusing information.

Watch video individually.

Note most important information or confusing information.

Group

Discuss most important information in text, diagram, and video.

Clear up any confusion.

Make sure all members understand.

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1. What is the electromagnetic spectrum?

2. Radio Waves (video) AM and FM Waves and Television Waves

3. Microwaves

4. Light and Visible Light

5. Infrared Light

6. Ultraviolet Light

7. X Rays and Gamma Rays