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Science Crossword 2

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Across
4
Visible light made by phosphor particles
5
Mirrors that curve outwards
6
Number of vibrations in a wave
8
The image produced by a plane mirror
10
A disturbance traveling through matter and space
11
Light produced by hot objects
16
Contains convex lens
18
Unit used to measure a frequency
19
Long optical fibers
20
A distance at any point on the wave is moved from its resting place
Down
1
Curved transparent object
2
The perception of an amplitude
3
Contains lens and mirrors
7
Thicker in the middle than the edges
9
Examples include: Cameras, telescopes, and microscopes
12
That curve inward
13
Thinner in the middle than at the edges
14
The perception of a frequency
15
Flat surface mirrors
17
An alternate type of incandescent light