Name:_____________________________________________
Science 8 – Hagan
Date____________
Period____________
Page __
Science 8 Quarterly Assessment #1 Review Sheet – Test Date = AC=11/15; BD=11/16
SEE REVIEW Q’s and Tests/Quizzes in your binder! -Sci. Meth. MC Q’s & Microscope MC Q’s, too
o
Measure with ruler; read a triple beam balance
o
Find volume of a box (be able to use V = LxWxH formula)
o
Be able to read graduated cylinder – read bottom of meniscus; use it to find volume of irregular object, too
(find difference between volumes. Final volume – first volume = volume of object).
o
Remember metric conversions and how to write your answer to the nearest tenth, hundredth,… and what
that means.
o
Safety Rules! - keep test tubes facing away from you; wear goggles and other safety equipment
o
Parts of microscope and functions; If you move slide left, it appears object moves right.
o
First use scanning power objective lens with coarse adjustment knob to scan for object and focus.
o
Center specimen in field of view. If the specimen is not centered in the field of view, it may not be visible
when the magnification power is increased (a higher objective lens is used). It may look like the specimen
has disappeared.
o
Once focused, can switch to high power – use only fine adjustment knob on high power (never coarse)
o
Total magnification is found by multiplying the magnification of the eyepiece and
the objective lenses.
o
Be able to calculate total magnification

Example: Eyepiece = 10x and the objective lens being used = 30x. What is the total
magnification?
Total mag. = 10x X 30x = 300x
o
To allow more light to pass through the specimen, the student should adjust the diaphragm
o
Control group = does not get the independent variable (does not change or is not changed)
o
o
Usually just water or the “blank” –
o
Is the basis for comparison
_Independent variable = the variable or factor that the scientist changes – goes on X-axis
o
This is the one thing that is different or that is being changed between the experiment groups and
the control group. Everything else (all other factors) are kept the same except for this one thing
we call the independent variable.
o
Dependent variable = what you measure or the results – the data you collect – goes on Y-axis
o
Hypothesis = If,…then,… statement that is a prediction or educated guess about what the scientist thinks
will happen in an experiment.
o
o
To test a hypothesis, a scientist would perform an experiment
o
Must first have a question and observations/research then you can make a hypothesis
Scientific Method = systematic process to solve a problem
o
Know the steps (final step = Conclusion)
o
To make sure the experiment results are valid, the experiments results must be repeated (get
same results).
o
Be able to make a line graph of data you are given. Connect the POINTS. Only graph the data – do NOT go
through the origin (0,0) unless there is a 0,0 point. Be able to ID variables and control in experiment.