Kaleb O
Maddie B Talon H
Holly N
Wesley
A
Olivia S
Jay E
Elaf D
Noah E
Lauren B Isaac D
Gozeila B
Carter E
Bergen B
Mark R
Taylor P
Elliot B
Mackenzie
E
Caleb H
Ty R
Alexus B
Alex K
Jack F
Nathan M Jade H
Nicolas T Mallory
H
Brett S
Anna B
Raina K
Kaitlyn C Adam H
Fern R
Jarrett M Kenley C
Alexei L
Abuk J
Dylan H
Megan F
Kyle D
Kristian J Brandon
C
Claire W
Garrett H Alicia R
Carley S
Microscope Lab
1. Apply Concepts The adjective compound means “made
by the combination of two or more parts.” In a compound
microscope, which are the parts that are being combined,
and why?
The parts being combined are the objective lens and the
eyepiece lens. They make the total magnification for the
image in the microscope.
You could also add – stage, slide, light source which combine
to form the image or help form the image
2. Compare and Contrast How is the image
of an object seen through a high-power
objective different from the image seen
through a low-power objective?
• Images seen under high-power will be
larger and contain more detail
3. Observe How did the position of the e
appear to change when it was viewed through
the microscope?
• The image of the letter e was upside down
and backwards
4. Draw Conclusions You observe an ant
through the eyepiece of a microscope. The ant
moves toward the bottom of the slide and then
it moves to the right. What do these
observations tell you about the actual
movement of the ant?
• The ant actually went up and left on the
slide
5. Form a Hypothesis Why must scientists
cut a thin slice from a biological specimen
before they can view it under a microscope?
• Light must be able to pass through the
specimen
• A coverslip or glass slide would not be able
to encase an entire organism
The Methods of Science
A. Science studies natural
patterns
1. Science is classified into
three main categories:
Life Science
Biology “the study of life”
Many branches of Biology
Earth Science
Physical Science
2. Science explains the natural
world; explanations can change
over time…for example?
– Science also aims to use those explanations to
understand patterns in nature and to make
useful predictions about natural events.
– What are some examples of patterns that
scientists use to make predictions?
3. Scientists investigate nature
by observations, experimentation,
or modeling
Science deals only with the
natural world.
• Science must be based on evidence, not
belief.
• Evidence comes from data and is constantly
being re-collected to ensure its validity.
Science, Change, and Uncertainty
– Despite all of our scientific knowledge, much of
nature remains a mystery.
– Almost every major scientific discovery raises more
questions than it answers. This constant change
shows that science continues to advance.
– Learning about science means understanding
what we know and what we don’t know.
– Science rarely “proves” anything in absolute
terms
– Scientists aim for the best understanding of the
natural world that current methods can reveal.
B. Scientific method - organized
set of investigation procedures
1. State a problem
2. Gather information
3. Form a hypothesis or educated
guess based on knowledge and
observation
4. An experiment with variables
is a common way to test a
hypothesis
• Typically, an experiment is divided into
control and experimental groups.
• A control group is the group that’s not being
tested (regular group)
• An experimental group is exposed to some
kind of experimental conditions
• The thing you use to test your experimental
group is called the independent variable
• What results from your independent variable
is called the dependent variable
• _________ depends on _____________
(Dep.)
(Ind)
5. Analyze data from an
experiment or investigation
6. Form a conclusion based on
data
7. Reduce bias by keeping
accurate records, using
measurable data, and repeating
the experiment