1. Microscopes are tools that use lenses to magnify objects so they can be seen more clearly. There are several types including simple, compound, stereoscopic, and electron microscopes. 2. Simple microscopes have one lens while compound microscopes use two or more lenses to allow light to pass through an object and the lenses. Stereoscopic microscopes give a three-dimensional view of living objects. Electron microscopes use magnetic fields and electron beams instead of light. 3. The eyepiece lens is usually 10x and does not change the magnification. The objective lenses have different powers like 4x, 10x, and 40x. To calculate total magnification, multiply the eyepiece magnification by the

1. S7CS1: Explore the
importance of
curiosity, honesty,
openness, and
skepticism in science
and will exhibit
these traits to
understand HOW
the world works. 1

2. Microscope
**Use p. 11 IAN to decode word**
Vision tool with one or more lenses that allows an
enlarged image of an object to be seen with our
eyes.
2

3. • Simple
• Compound
• Stereoscopic
• Electron ese
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4. Simple Microscope
Similar to a magnifying glass and
has only one lens.
ce:
en ten d
ple s ect an
Sim subj
.
One e verb
on
4

5. Compound Microscope
Lets light pass through an object and
then through two or more lenses.
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und sentenc
Compo and
e subjects e.
2 o r mor one sentenc
in
verbs
5

6. Stereoscopic Microscope
Gives a three dimensional view
of a LIVING object.
(Examples: insects and leaves)
St
mult ereo:
i-dir
ectio
nal
6

7. Electron Microscope
Uses a magnetic field to bend beams of electrons;
instead of using lenses to bend beams of light.
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at tra
n ets er?
Mag memb
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7

8. Lens
Enlarges an image and bends the
light toward your eye.
8

9. Eyepiece Lens
Usually has a power of 10x (doesn’t change)
9

10. Objective Lenses in
Smitha’s microscope
Low Power = 4x
Medium Power = 10x
High Power = 40x
10

11. Microscope MATH
Eyepiece Lens X Objective Lens = Magnification
10x (eye piece) & 5x (lens) = _______
10x (eye piece) & 10x (lens) = ______
10x (eye piece) & 40x (lens) = _______
Why didn’t the eye piece number change?
11

12. Science Math Time
Are you ready to…MULTIPLE?
Eye Piece Lens Total Magnification
10x 5x
10x 50x
10x 75x
10x 100x
10x ir, 150x
in the a care…
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Thro ro lik y ten
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12

13. ION-
LU S u l
CONC ningf
ea y ou ! Microscopes in Action
m
en t to
chm
atta
Have you noticed that in restaurants, there are
signs encouraging employees to wash their
hands.
WHY?
If you had a microscope with you…
what could you see?
Would you still eat there? Write a
paragraph explaining your answer.
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