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Optical Illusions Vocabulary
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What is it called when a mirror is curved outward?
Convex
What is called when a mirror in curved inward?
Concave
the scenery or ground behind something (our black paper)
background
What is it called when you see a mirror image of something?
reflection
True or False:  Scientists must use their eyes and ears to focus and do their best work.
True
a solid shape with 6 square faces:
cube
What was the name of the challenge we learned about today?
Pepper's Ghost Challenge
What kept the pom poms in the cup yesterday (or people in their roller coaster seats?)
centrifical force
Lanny Smoot said it was super important to stay...
curious
Where did Lanny Smoot say he liked to get his ideas?
library (now he said we can use the internet too!)
The name of the NIHF inventor who was famous for his illusion work
Lanny Smoot
a misleading image presented to the eye:
illusion
What is the name of the 6 sided shape (we made a ______ mirror)
hexagon
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