Observing cells with a light microscope | Science | Quizalize & Oak National Academy

Starter quiz

Which of the listed words is a a scientific term for looking at a living organism?
- investigate
- watch
- observe ✓
- view
Choose the correct name for this piece of apparatus
- microscope
- teloscope
- magnifying glass ✓
A living ______ is the scientific name for things that carry out the common life processes at some point in their life cycle.
- 'organism' ✓
What could you do to this image of a bee to make it easier to see the detail?
- make it lighter
- make it bigger ✓
- make it smaller
- make it darker
A light source is important for humans to see objects in detail. Choose the image that was taken with more light available.
All living ______ are made up of smaller building living blocks called cells, these can be viewed using a microscope.
- 'organisms' ✓

All living organisms are made up of living building blocks called ______.
- 'cells' ✓
Match the keyword to the correct definition.
- focus
  
  ⇔
  
  makes an image clearer ✓
- magnification
  
  ⇔
  
  makes an image bigger ✓
Match the parts of the microscope to a description of their job.
- Light source
  
  ⇔
  
  Provides light to see through the specimen. ✓
- Objective lens
  
  ⇔
  
  To magnify the image to make it bigger. ✓
- Stage
  
  ⇔
  
  To place the slide on. ✓
- Focusing wheel
  
  ⇔
  
  To focus the image, to make it clearer. ✓
Put these steps in order to describe the method of viewing a cell using a microscope.
- 1
  
  ⇔
  
  Place the slide on the stage and turn on the light.
- 2
  
  ⇔
  
  Turn to the lowest objective lens.
- 3
  
  ⇔
  
  Turn the coarse focusing wheel until the image is clear to see.
- 4
  
  ⇔
  
  Turn the fine focusing wheel to make the image very clear.
- 5
  
  ⇔
  
  Increase the size of the objective lens.
Which image has a higher magnification?
How could this image be improved to make it clearer?
- Change the size of the objective lens.
- Turn up the brightness of the light.
- Turn the focusing wheel. ✓

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All organisms are made up of living building blocks called cells.
Cells are usually too small to see with the unaided eye.
The cells that make up tissue on a slide can be observed using a light microscope.
Changing the magnification and focus of a light microscope enables cell structures to be observed.

Cells are inert 'building blocks' like bricks. Microscopes can see structures as small as molecules.

The lesson explores what cells are, including that they are living units, and considers what can and can't be seen using a light microscope.

Cell - A cell is the smallest living building block of a living organism.
Lens - A lens is a piece of curved glass which focuses light to alter the size of the image.
Light microscope - A light microscope is a piece of equipment that uses lenses to focus light and enlarge the object.
Focus - Adjusting the focus of a lens makes an image clearer.
Magnification - Increasing the magnification of an object makes it look bigger.