Methylene blue

1. Methylene blue

2. What is your task? • Test different recipes of Gluep • Explain which ingredients are responsible for the “bounce factor” • Optimum recipe

3. MAGNIFICENT MICROSCOPES! • DO NOT TOUCH THE MICROSCOPES! YOU BREAK, YOU BUY! • K-W-L Chart • Write what you already KNOW about microscopes in the “K” column • Write what you WANT to know in the “W” column • Leave the “L” blank for “learned” • K W L 1. 2. 3.

4. Watch your budget! • Bring your order form to the teacher each time to receive your supplies. • Mrs. Eberling will sign off • Team with the bounciest Gluep will be rewarded the contract. • Overbudget- cannot win.

5. Warm-Up #8: February 22ndHappy Monday!           • Hand in your foods lab if you have not already. • Hand in your “Who Am I” and Crossword Puzzle worksheet! • Workbook pg. 73- tear out and place in warm-up section. • Lab discussion/review

7. Microscopes Before Microscopes: People were sick and died. 

8. Microscopes • Brain POP • http://www.brainpop.com/science/scientificinquiry/microscopes/

9. Microscope Tool used to look at small organisms. • Micro- small • Scope- to look at

10. Microscopes allow us to see cells! • Cell Basic unit of life. Animal Cell Plant Cell

11. http://videos.howstuffworks.com/hsw/12623-the-world-of-the-microscope-cells-and-bacteria-video.htmhttp://videos.howstuffworks.com/hsw/12623-the-world-of-the-microscope-cells-and-bacteria-video.htm

12. Microscope Types • 1. Simple light- 1st Type • 1 lens Energy Source-light • Low magnification power

13. 2. Compound Light • 2+ lens Energy Source- light • Lens=10 Objective=4 (x multiply) • Total magnification= 40 goes up to 1500X’s

14. 3. Electron microscopes • Uses beam of electrons • Magnify up to 500,000 X’s

15. SEM TEM • Scanning electron Transmission electron microscope Microscope • Surface Inside

16. Electron Microscope

17. Image of a Fly Foot

18. Spider

19. Pollen

20. Compound Light Microscope

21. Cheek Cells

23. More of Magnificent Microscope • http://www.livemicroscope.com/mosquite_video/

24. http://videos.howstuffworks.com/hsw/12619-the-world-of-the-microscope-standard-light-microscopes-video.htmhttp://videos.howstuffworks.com/hsw/12619-the-world-of-the-microscope-standard-light-microscopes-video.htm

25. Parts of a Microscope • You can write the definitions of each part on a separate sheet of paper or next to the labeled part.

26. The Arm • Arm- Used to carry the microscope.

28. The Eyepiece • The Eyepiece: This is the where you look into the microscope. eyepieces are usually labeled x10 or x15.

30. The Diaphragm • Diaphragm- used to regulate the amount of light.

32. The Objective Lens • The Objective Lens: There are usually three objective lenses. Typically these would be labeled X4 x10 and x40 on a school microscope.

34. The Stage • The Stage: Is the part of the microscope which holds the slide.

36. The Slide • The Slide: Is a rectangular piece of glass used to hold the specimen.

37. The slide goes here.

38. Cover Slip • Cover slip: Is a piece of thin glass placed over the item you are examining on the slide.

40. Stage Clips • Stage Clips- used to hold the slide/specimen on the scope.

42. Coarse Focus • The Coarse Focus: is used to focus the microscope on the item you are examining

44. The Fine Adjustment Knob • The Fine Adjustment knob: is used to change the focus slightly, so that the specimen (The item under examination) is very clear.

46. The Light • The Light: is used to illuminate the specimen. In order to view something with a microscope. Some microscopes use a mirror instead of a light.

48. The magnification of a microscope: • Is calculated by multiplying the eyepiece power by the objective power. • Therefore if we have a X10 eyepiece and have selected a x15 objective lens what is the magnification? • 150X… This means that the object we are looking at (The Specimen) is being magnified 150 times.

49. Cell Theory

50. Shapes! Complete at the end of lab as an exit ticket. Circle Write two things you learned during the lesson. Square Write two things you are still unsure about. Heart Write two things you enjoyed most from today’s lesson.