1. 10/25 & 10/26 - 7 th Grade Agenda Learning Objective: Learn about Cells Collect: HW Reading Guide Chap 2 Section 2 & 4 Cells Lens & Mirror Lab Video: Science in Action “Cells” Class Reading p.80-85 HW: Reading & Note Taking : p. 53 - 56 HW: Cell Model due 11/7 & 11/8

2. Reflection Why do we see optical illusions? (Write the answer in complete sentence)

3. More Optical Illusions

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

6. Which center circle is larger

7. Are they moving?

10. Convex Mirror

11. Concave Mirror

12. Convex Lenses

13. Concave Lenses produces smaller image

14. 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

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

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

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

18. 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

19. Four views of the Crab Nebula using different telescopes

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

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

22. Reflection How does an image appear in a concave mirror? How can you make the image appear upside down in a concave mirror? How does an image appear in a convex mirror?

23. The basic unit of structure and function in living things is called C_____ ells

24. The invention of the mi_______ made it possible for people to discover and learn about cells croscope

25. In 1663 Robert Hooke observed the structure of thin slice of c____ using com________ microscope ork pound Drawing of dead cork cells by Hooke

26. Cell Theory: All l______ things are composed of cells iving

27. Cell Theory: Cells are the basic unit of str______ and f________ in living things ucture unction

28. Cell Theory: All cells are pr_______ from other cells oduced

29. Cell Model Project – 40 Points Due 11/7 & 11/8 3D Model of a cell. If it is just a drawing you will loose at least 10 points.

30. Cell Video

31. Lens & Mirror Lab Write 3 observations that you made in the Lens and Mirror Lab.