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Wednesday 12/5/18 Day 1

Wednesday 12/5/18 Day 1. Agenda. Science notebook. Science Starters Sheet. 1. Please have these Items on your desk. 2- Fill out your Agenda. https://www.youtube.com/watch?v=u4ki28XLzOA List four different cell organelles that you hear about in the song.

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Wednesday 12/5/18 Day 1

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  1. Wednesday 12/5/18 Day 1 Agenda Sciencenotebook ScienceStarters Sheet 1. Please have these Items on your desk. 2- Fill out your Agenda. https://www.youtube.com/watch?v=u4ki28XLzOA List four different cell organelles that you hear about in the song. .

  2. Table of Contents Update • Pg. 73 12/5 Genetics Title Page • Pg. 74 12/5 Genetics Learning Goal • Pg. 75 12/5 Plant Cell lab

  3. Genetics Learning Goal

  4. Microscope Basics

  5. Ocular lens(Eyepiece) • Body Tube • Nosepiece • Holds the HIGH- and LOW- power objective LENSES; can be rotated to change MAGNIFICATION. • ARM • Used to SUPPORT the microscope when carried • OBJECTIVE LENSES • Magnification ranges from • 10 X to 40 X • STAGE • Supports the SLIDE being viewed • STAGE CLIPS HOLD the slide in place • COARSE ADJUSTMENT KNOB • Moves the stage up and down for FOCUSING • DIAPHRAGM Regulates the amount of LIGHT on the specimen • FINE ADJUSTMENT KNOB • Moves the stage slightly to SHARPEN the image • LIGHT SOURCE Projects light UPWARDS through the diaphragm, the SPECIMEN, and the LENSES • BASE • Supports the MICROSCOPE

  6. What happens as the power of magnification increases? Power = 10 x 10 = 100 Power = 10 x 40 = 400 Power = 10 x 4 = 40

  7. We can see better details with higher the powers of magnification, but we cannot see as much of the image. Which of these images would be viewed at a higher power of magnification? Comparing Powers of Magnification

  8. 3 – Once you have the image in view, rotate the nosepiece to view it under different powers. Be careful with the largest objective! Sometimes there is not enough room and you will not be able to use it! Let’s give it a try ... 1 – Turn on the microscope and then rotate the nosepiece to click the low objective into place. 2 – Place a slide on the stage and secure it using the stage clips. Use the coarse adjustment knob(large knob) to get it the image into view and then use the fine adjustment knob(small knob) to make it clearer. 4 – When you are done,turn off the microscope, lower stage and move back to low lense

  9. 4 - Slowly lower the cover slip on top of the drop. Cover Slip Lower slowly 5 – Place the slide on the stage and view it first with the low objective. Once you see the image, you can rotate the nosepiece to view the slide with the different objectives. You do not need to use the stage clips when viewing wet-mount slides! How to make a wet-mount slide … 1 – Get a clean slide and coverslip from your teacher. 2 – Place ONE drop of water in the middle of the slide. Don’t use too much or the water will run off the edge and make a mess! 3 – Place the edge of the cover slip on one side of the water drop.

  10. Plant Cell Lab Read entire lab hand out. Create your hypothesis in an If/then, because format. Drawings go in the boxes on the backside of the hand-out. Use color and details in your drawing. Answer analysis questions.

  11. Elodea Leaf Magnified

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