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Erstellt von Jannat Abbas
vor mehr als 5 Jahre
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Frage | Antworten |
Making Things Bigger: Using Microscopes | |
1. What does 'magnified' mean?
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Being made bigger. |
2. What is a microscope and how does it help scientists? | An instrument used to make very tiny things look bigger. It's useful when scientists need to zoom into very small specimens. |
3. What is a specimen?
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The object being looked at through the microscope. |
4. What is a light microscope?
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A microscope that uses light to reveal the image. |
5. What is an image (in scientific terms)? | What is seen through the microscope. |
6. What is the difference between a LIGHT microscope and a BINOCULAR microscope? | LIGHT MICROSCOPE: has one ocular lens BINOCULAR MICROSCOPE: has 2 ocular lens |
7. What are the different parts of the microscope and what do they do? | |
Eyepiece and Objective Lens
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Magnifies the image |
Stage
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Where the specimen is placed |
Mirror/Lamp
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Directs light up through the stage and specimen |
Handle
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For carrying the microscope |
Fine Focus Knob and Course Focus Knob
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Fine Focus: used to focus the image on high power Course Focus: used to focus the image on lower power |
8. What is a Stereo Microscope?
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A binocular microscope that creates a 3D image |
9. What is a dissection? | To cut apart a dead plant or animal to study it |
10. What is magnification?
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The amount by which the image is magnified compared to the real object (specimen) |
11. What is a micrometre? | 1000th of a millimeter or one millionth of a metre. Used for measuring very tiny objects as millimetres might be too big. |
12. What is an electron microscope and what is it used for? | A microscope that uses beams of electrons to magnify up to 1 million times. Its used for higher magnification. |
13. What are the 2 types of electron microscopes and what do they stand for? | SEM: Scanning Electron Microscopes TEM: Transmission Electron Microscopes |
14. Comparing TEM and SEM microscopes... |
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