t. trimpe 2008 challenge #1 parts of the microscope
TRANSCRIPT
T. Trimpe 2008 http://sciencespot.net/
Challenge #1Parts of the Microscope
Label the parts of the microscope
Eye Piece/Ocular lens
Diaphragm
Objectives
Nosepiece
Fine Adjustment Knob
Coarse Adjustment Knob
A
B
C
D
E
F
The answers are …
A
B
C
D
E
F
Eye Piece
Ocular Lens
Diaphragm
Objectives
Nosepiece
Fine Adjustment
Knob
Coarse Adjustment
Knob
T. Trimpe 2008 http://sciencespot.net/
Challenge #2Parts of the Microscope
Arm
Body Tube
Coarse
Adjustment
Diaphragm
Fine Adjustment
Objective Lenses
Eye Piece
Stage
AD
B
F
E
CGH
Identify the parts of a microscope.
AD
B
F
E
CGH
The answers are ...
A. Body Tube
E. Arm
B. Objective Lenses
C. Diaphragm
D. Eye Piece
G. Coarse Adjustment
F. Stage
H. Fine Adjustment
T. Trimpe 2008 http://sciencespot.net/
Challenge #3What do you know about microscopes?
Answer these questions based on your knowledge of microscopes.
1. If you have three objectives – 10X, 30X, and 40X, which one has the lowest power of magnification?
2. Which of these images would be taken with a high power objective?
3. How does your view of a specimen change as you increase your power of magnification?
1. If you have three objectives – 10X, 30X, and 40X, which one has the lowest power of magnification?
2. Which of these images would be taken with a high power objective?
3. How does your view of a specimen change as you increase your power of magnification?
The answers are …
10X
HIGH POWER
You are able to see the specimen in more detail,
but you cannot see as much of it.
T. Trimpe 2008 http://sciencespot.net/
Challenge #4What do you know about microscopes?
Answer these questions based on your knowledge of microscopes.
4. Where should you hold on to the microscope 4. Where should you hold on to the microscope when you carry it?when you carry it?
5. What is the scientific term for the eyepiece?5. What is the scientific term for the eyepiece?
6. If the ocular lens has a power of 4X and the 6. If the ocular lens has a power of 4X and the objective you are using has a power of 10X, what objective you are using has a power of 10X, what is your power of magnification?is your power of magnification?
7. What is the function of the diaphragm?7. What is the function of the diaphragm?
The answers are …
4. Where should you hold on to the microscope when you carry it?
5. What is the scientific term for the eyepiece?
6. If the ocular lens has a power of 4X and the objective you are using has a power of 10X, what is your power of magnification?
7. What is the function of the diaphragm?
Arm & Base
Ocular Lens
4X x 10X = 40X
It regulates the amount of light that passes through the specimen.
T. Trimpe 2008 http://sciencespot.net/
Challenge #5What do you know about microscopes?
8. What part regulates the amount of light on a specimen?
9. If the eyepiece has a power of 12X and the objective has a
power of 10X, what is the power of magnification?
10. What part of the microscope holds the objective lenses?
11. What part allows you to make small changes in your
view of a specimen?
Answer each question about microscopes.
8. What part regulates the amount of light on a specimen?
9. If the eyepiece has a power of 12X and the objective has a power of 10X, what is the power of magnification?
10. What part of the microscope holds the objective lenses?
11. What part allows you to make small changes in your view of a specimen?
The answers are …
Diaphragm
12X x 10X = 120X
Nosepiece
Fine adjustment knob
T. Trimpe 2008 http://sciencespot.net/
Challenge #6Powers of Magnification
Fill in the missing information in the chart based on your knowledge of powers of
magnification.
Ocular Lens
Objective Lens
Power of Magnificati
on
5 20
10 400
10 120
A
B
C
Ocular Lens
Objective Lens
Power of Magnificati
on
5 20
10 400
10 120
The answers are …
A
B
C
100
40
12
X =
Do you know the critters you see in pond water?
T. Trimpe 2008 http://sciencespot.net/
Identify each pond water critter.Place the correct number next to each name
Mosquito Larva_____Dragonfly Nymph____Damselfly Nymph____Mayfly Nymph____Nematode_____Water Flea_____Rotifer_____
The answers are ...
Mosquito
Larva
DragonflyNymph
Rotifer
DamselflyNymph
Nematode
Water Flea Mayfly Nymph