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10/18 & 11/19 - 7th Grade Agenda
Learning Objective: Learn about Optical IllusionsCollect: Reading & Note Taking : p. 49 - 52Class work: Chap 2 Study GuideOptical Illusion VideoBrain Pop: Colors, Reflection & RefractionLens & Mirrors LabClass Reading: p. 46 – 49 & 62 - 64HW: Reading Guide Chap 2 Section 2 & 4Reminder Chap 2 Test on 10/23 & 10/24
Reflection
• What is the difference between Rods and Cones cells? (write in complete sentence)
Parts of the Eye
Image is projected up_______ down. Left eye sends the image to the r____ side of the brain. Right eye sends the image to the l____
side of the brain.
sideight
eft
Rods and Cones
• Rods responds to lig______
• Cones respond to co_____
ht
lor
Nearsightedness
Farsightedness
Lasik OperationReshapes the cornea
Gali_____’s Telescope
• He was the first man to observe the moons of Jupiter and craters on the moons with a telescope in 1608
leo
What is a Refracting Telescope?
• A telescope that uses convex le______ to gather a large amount of light onto a small area
nses
What is a Reflecting Telescope?
• A telescope that uses mi_______ to focus a large amount of light onto a small area
rrors
What is the difference between refracting and reflecting
telescope?
What is a Radio Telescope
• A telescope that uses curved, reflecting surfaces to concentrate faint ra_____ wa______ from outer space onto small antennas
dioves
Four views of the Crab Nebula using different telescopes
Microscope
• A Microscope uses a combination of le_____ to form enla_______ image of tiny objects
nsesrged
Electron Microscope
• Electron microscopes uses ele______ instead of li______ to produce a magnified image
ctronsght
Optical Illusions
How many black dots are there?
Which Labeled Square is Darker?
Are the wheels turning?
Do you see diagonal gray lines?
Stare at this for 20 seconds & then I’ll switch to a blank slide
Which center circle is larger
Are they moving?
Finding your blind spot
Video: Optical Illusions