Cells. Starter What do these things have in common? They all make things look bigger!

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Presentation transcript:

Cells

Starter What do these things have in common? They all make things look bigger!

Objectives Know what microscopes do (Level 3) Know parts of the microscope (Level 4) View samples under the microscope and draw them (Level 4) Calculate total magnification (Level 5)

What do we use microscopes for? To make very small things look bigger

Robert Hooke Hooke used an early microscope to look at cork He saw what looked like tiny rooms and called them ‘cells’

Eye Piece Arm Stage Coarse Focus Fine Focus Base Tube Objective lens Stage Clamps Light

How to work out the magnification Total magnification = magnification of eye piece lens x magnification of objective lens

Post-it note plenary What does a microscope do? (L3) Name three parts of a microscope and what they do (L4) What is the total magnification if the eye piece has a magnification of x10 and the lens has a magnification of x40? (L5)

Homework