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4 th Grade Science. A quick back-and-forth movement of matter
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- Slide 1
- 4 th Grade Science
- Slide 2
- A quick back-and-forth movement of matter.
- Slide 3
- A form of energy that travels through the air (in waves).
- Slide 4
- How high or low a sound is.
- Slide 5
- The number of vibrations per unit of time.
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- Allowing light to pass through.
- Slide 7
- Allowing no light to pass through- the light is absorbed of
reflected.
- Slide 8
- Allowing only some light to pass through.
- Slide 9
- The bouncing of light off an object.
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- One small part of a range of energy known as the
electromagnetic spectrum.
- Slide 11
- A transparent solid body often having a triangular basis for
separating a light into a spectrum (ROY G BIV), or for reflecting
rays of light.
- Slide 12
- A band of colors produced when sunlight is passed through a
prism visible to the eye.
- Slide 13
- A lens that is thicker at the edges than it is at the
center.
- Slide 14
- A lens that is thicker at the center than it is at the
edges.
- Slide 15
- The bending of light as it moves from one material to
another.