science_safety_project_rubric_scale.pdf | |
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Infrared images of various objects
http://www.teachersdomain.org/asset/ess05_int_irgallery/
The Infrared (IR) wavelength of the Electromagnetic Spectrum is not visible to humans. Cameras with special sensors pick up this IR radiation and convert it to visible wavelengths (colors; ROY G BIV). The colors correspond to the amplitude or intensity of IR radiation emanating from the object. Most cell phone digital cameras can detect IR radiation. Look at the end of a TV remote control while pushing the buttons on the remote. Do you see anything? Now look at it through your cell phone camera while pushing the buttons. See anything now? If not, your camera may have an IR filter that blocks this wavelength, or the batteries in your remote may be weak. With most, you should see a flashing light on the end of the remote. TV and other remote controls use IR radiation to communicate with the TV set.
What else can you find that uses IR?
Science of NFL Football
Think what you're learning in Science is useless? Check this out.
http://www.nbclearn.com/portal/site/learn/science-of-nfl-football
Light & Optics
http://www.opticalres.com/kidoptx_f.html
Electromagnetic Waves links
Ocean Surface Wave Animation
EM Wave animation
Uses/Hazards of EM Waves
Wave Sim
Another Wave Sim
Sound Wave Thinkquest
Frequency/Amplitude Sim
Practice Test Questions for Waves & Light Exam
Click above for a bunch of practice test questions. If you know all these, you can teach this stuff!
Waves Unit Review (Jeopardy)
Everything you need to know to pass the unit test next week is in the Jeopardy game.
To ACE the test and achieve a 4 on the learning scale, make sure you understand:
- Memorize the EM spectrum, including visible light, in order of wavelength, frequency and energy.
- Know the relationship among Wavelenth, Frequency, & Energy
- Know that Frequency = Energy (actually, Freq & Amplitude = Energy, but you don't need to know anything about amplitude except that, for sound, higher amplitude = higher volume/louder & vice-versa)
- Understand that mechanical waves (like sound) move faster in denser media/states of matter.
- EM waves move slower in media than vacuum; denser=slower (not really, but that's what you need to know now).
- That seismic waves are a way scientists gather indirect evidence about Earth's layers & composition
- Denser media refract light more (Refraction is defined as "bending" of light. Not accurate, but that's the term they need to know)
- Refraction happens when light moves from one medium to another, from space to a medium, or from a medium to space.
- For sound waves, higher frequency = higher pitch/lower frequency = lower pitch
- For light waves, frequency = color (higher = closer to violet, lower = closer to red)
- Uses, but not hazards of EM wavelength bands, especially for Earth/Space astronomy uses & studying condition of Earth environment
- That the ozone layer protects us from most of the sun's harmful UV waves
- The color of an object is the frequency of visible light it reflects. Others are absorbed.
- Difference between regular and diffuse reflection. All the other stuff in the book on real/virtual images, lenses, etc. is not needed.
- Understand diagrams/models of reflection, refraction, absorption, transmission, scattering
- Know definitions of opaque, transparent, and translucent as they relate to reflection, refraction & absorption of light
- Understand law of reflection (not the term "incidence", but be able to tell which model correctly shows a regular reflection versus diffuse)
- That Earth's energy/heat, etc., comes from the sun as EM radiation through empty space (related to heat transfer)
- EM waves are only waves that go through space
- Earth's magnetic field shields us from high energy radiation (most UV, x-ray & gamma)
- Infrared is felt by humans as "heat"
You DO NOT need to fully understand:
- Real vs. Virtual images
- Focal points of mirrors & lenses
- Different types of mirrors & lenses
Just know that lenses refract ("bend" light) and mirrors reflect it.
NASA Tour of the EM Spectrum videos
Watch these NASA videos about EM waves and their uses.
When you finish the DE Test, do the following:
1. Clear Pearson Success Net "To Do" folder.
2. Review Waves Jeopardy review game and read the test info below it.
3. Watch the NASA Tour of the EM Spectrum videos
4. Read the practice test questions for next week's test.
5. Play with the waves/optics sims.
2. Review Waves Jeopardy review game and read the test info below it.
3. Watch the NASA Tour of the EM Spectrum videos
4. Read the practice test questions for next week's test.
5. Play with the waves/optics sims.
Waves/Light Alternative Assessment
Lab Safety Team Project
This week your team will create a presentation about lab safety. You have several options:
- safety brochure/posters
- rap
- jody/chant
- song
- poem
- skit
- video
- Powerpoint/Prezi
- or other ideas if you clear them through me first.
The attached rubric and scale shows how this project will be graded. You may use any resources you can find, but you MUST cite sources if you copy any material directly from the internet, a book, the safety contract, etc. While no written report is required for this project, your team must provide me a written bibliography in MLA format before you present your project on Friday. (See this link for MLA format http://www.humbleisd.net/Page/821 or Google "MLA citation format" for other guides. Your team will have five minutes MAX to present the project on Friday.
- safety brochure/posters
- rap
- jody/chant
- song
- poem
- skit
- video
- Powerpoint/Prezi
- or other ideas if you clear them through me first.
The attached rubric and scale shows how this project will be graded. You may use any resources you can find, but you MUST cite sources if you copy any material directly from the internet, a book, the safety contract, etc. While no written report is required for this project, your team must provide me a written bibliography in MLA format before you present your project on Friday. (See this link for MLA format http://www.humbleisd.net/Page/821 or Google "MLA citation format" for other guides. Your team will have five minutes MAX to present the project on Friday.