1. 10/18 & 11/19 - 7 th Grade Agenda Learning Objective: Learn about Optical Illusions Collect: Reading & Note Taking : p. 49 - 52 Class work: Chap 2 Study Guide Optical Illusion Video Brain Pop: Colors, Reflection & Refraction Lens & Mirrors Lab Class Reading: p. 46 – 49 & 62 - 64 HW: Reading Guide Chap 2 Section 2 & 4 Reminder Chap 2 Test on 10/23 & 10/24

2. Reflection What is the difference between Rods and Cones cells? (write in complete sentence)

3. Parts of the Eye

4. 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. side ight eft

5. Rods and Cones Rods responds to lig______ Cones respond to co_____ ht lor

6. Nearsightedness

7. Farsightedness

8. Lasik Operation Reshapes the cornea

9. 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

10. What is a Refracting Telescope? A telescope that uses convex le______ to gather a large amount of light onto a small area nses

11. What is a Reflecting Telescope? A telescope that uses mi_______ to focus a large amount of light onto a small area rrors

12. What is the difference between refracting and reflecting telescope?

13. What is a Radio Telescope A telescope that uses curved, reflecting surfaces to concentrate faint ra_____ wa______ from outer space onto small antennas dio ves

14. Four views of the Crab Nebula using different telescopes

15. Microscope A Microscope uses a combination of le_____ to form enla_______ image of tiny objects nses rged

16. Electron Microscope Electron microscopes uses ele______ instead of li______ to produce a magnified image ctrons ght

17. Optical Illusions

18. How many black dots are there?

19. Which Labeled Square is Darker?

20. Are the wheels turning?

21. Do you see diagonal gray lines?

22. Stare at this for 20 seconds & then I’ll switch to a blank slide

24. Which center circle is larger

25. Are they moving?

28. Finding your blind spot

29. Video: Optical Illusions