10 7 10 8 7 th grade agenda
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10/7 & 10/8 - 7 th Grade Agenda. Collect: Reading & Note Taking : p. 35- 36 Pass back HW & Test Transparent, Translucent and Opaque Disappearing Water trick Video: Science in Action Waves Equipment Lab Passback Graded HW & Test Class Reading: p. 44 - 50

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10/7 & 10/8 - 7 th Grade Agenda

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10 7 10 8 7 th grade agenda

10/7 & 10/8 - 7th Grade Agenda

Collect: Reading & Note Taking : p. 35- 36

Pass back HW & Test

Transparent, Translucent and Opaque

Disappearing Water trick

Video: Science in Action Waves

Equipment Lab

Passback Graded HW & Test

Class Reading: p. 44 - 50

HW: Reading & Notetaking : p.37 - 40


Daily reflection

Daily Reflection

  • Prompt: Give 5 examples of electromagnetic waves. What is the one difference between all the electromagnetic waves? .


Electromagnetic wave

Electromagnetic Wave

  • An electromagnetic wave consists of vibrating electric and magnetic field that move through space at the speed of lig____

ht


What are some examples of electromagnetic waves

What are some examples of electromagnetic waves?

  • Radio Waves

  • TV Signals

  • Microwaves

  • Infrared rays

  • Light

  • Ultraviolet rays

  • X-Ray


How fast do electromagnetic waves travel

How fast do electromagnetic waves travel?

  • It is the fastest thing in the universe

  • 300,000 km per second

  • 186,000 miles per second

  • It takes 8 minutes for light to travel from the sun to the earth

  • It takes 3 million years for light to travel from the nearest galaxy (andromeda) to the earth


Electromagnetic wavelength

Electromagnetic Wavelength


How do we use radio waves microwaves

How do we use Radio Waves & Microwaves?

  • Radio & TV signals

  • Microwave Oven

  • Radar

  • MRI

  • Cell phone


Using microwaves

Using Microwaves

  • Why do you see sparks you put metal objects in a microwave?

  • Because of the build up of electrical energy in the metal

  • The long wave length of Microwaves can pass right through glass and plastic. That is why microwaves do not heat glass and plastic containers.


Cell phone towers

Cell phone towers

  • These towers are placed 1 -2 miles apart in a city

  • They use M______wave to communicate with cell phones

  • They can be used to locate the loc_______ of the caller.

icro

ation


How do we use infrared rays

How do we use Infrared Rays?

  • Conventional Oven

  • Heat Lamps

  • Thermograms


Visible light makes up only a small part of the electromagnetic spectrum

Visible Light makes up only a small part of the electromagnetic spectrum


Transparent materials

Transparent Materials

  • Transparent material trans_____ most of the light that strike it.

mit


Translucent materials

Translucent Materials

  • A translucent material sca____ light as it passes through, just as smoke, fog, and clouds scatter light as it passes through the air.

tters


Opaque materials

Opaque Materials

  • An opaque material refl_____ or absorbs all of the light that strikes it.

ects


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