Microscopes

Poll

1. Would you rather... rhyme every time you spoke or not be able to speak without shouting?

• Rhyme til I'm in my prime

• ALWAYS YELLING

​Science Bucks - Let me explain

Multiple Choice

What does a microscope do?

• Produces a magnified (bigger) image of something too small for the eye to see

• Helps us look at stars

• Produces a smaller image of something too big to see at once

• Helps us look at our teeth

​The microscope

​Looking at cells and discovering the three parts of the cell theory wouldn't have been possible without the microscope. Cells are too small to see without a microscope.

Poll

Have you ever used a microscope before?

​Development of Microscopes

​It’s not clear who invented the first microscope, but the Dutch spectacle maker Hans and Zacharias Janssen (b.1585) is credited with making one of the earliest compound microscopes (ones that used two lenses) around 1600. The earliest microscopes could magnify an object up to 20 or 30 times its normal size.

​

​In the late 1600s the Dutch merchant Anton van Leeuwenhoek made improvements to the first microscope. This microscope had one lens and could magnify an image about 270 times to its original size.

​Microscope Parts

• ​Ocular Lens

• ​Stage

• ​Objective Lenses

• ​Diaphragm

• ​Coarse Adjustment Knob

• ​Fine Adjustment Knob

• ​Light

To the GimKit!

Multiple Choice

A microscope has a 4x ocular lens and a 10x objective, what is this microscope's total magnification?

• 4x

• 14x

• 40x

• 400x