Microscopy Lab You will work today with some newspaper pieces and various items of your choice. Remember: PLAY, BUT WITH PURPOSE! Please handle the microscopes.

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Presentation transcript:

Microscopy Lab You will work today with some newspaper pieces and various items of your choice. Remember: PLAY, BUT WITH PURPOSE! Please handle the microscopes carefully, follow instructions, and write down notes from this introduction in your science log. When you are done with this lab, please turn it into the inbox with your name on it. Then you may begin reading the “Kids Discover: Cells” magazine quietly.

How Microscopes work: Observing and Drawing Objects: Because the light rays from an object cross before reaching your eye, the image you see through our light microscopes will be inverted and upside down. (See next slide.)

What you see is what you get… Sitting on the stageViewed through the lens

When making drawings do the following: For drawings only, use pencil - you can erase and shade areas. Begin by identifying the area viewed through the microscope with a circle. Specimens should be drawn to scale. If the specimen takes up the whole viewing field, make sure your drawing shows this. Drawings should be labeled with the specimen name and magnification. Drawings should be large enough to view details and have significant details labeled.

Why do we use stain? Natural cheek cells Stained cheek cells

Two important terms! Magnification: the increase of an object's apparent size. Clarity of the edges, colors, and details may change for the worse! Resolution: the power to show details clearly. Resolution allows the viewer to see two objects that are very close together as two objects rather than as one.

Care and Handling of the Microscope: A microscope is a delicate piece of equipment and should be treated with care. Use two hands when carrying the microscope. Place one hand around the arm of the microscope and the other under the base for support. Carry the microscope upright and close to the body.

Care and Handling of the Microscope: Place the microscope flat on the table, but not too near the edge where it might be knocked off. DO NOT slide the microscope back and forth on the lab table. If it becomes necessary to clean the lenses on the microscope, ask your facilitator for a piece of lens paper. Other materials, such as paper towel, can scratch the surface of the lens.

Just a few of the parts you should know.

And now…Practice!!! Pick up a Microscopy Lab and materials from the front of the classroom. Please leave everything organized and clean when you are finished…your cooperation is greatly appreciated! For more on microscopes, visit: