Lesson 3
Scientific Tools
Organism(s)
Living Things
Microorganism(s)
Living thing too small to see with the unaided eye.
Compound Light Microscope
Uses pairs of lenses to form a larger image.
Eyepiece
Coarse Adjustment
Knob
Fine Adjustment
Knob
Arm
Clips
Inclination Knob
Ocular Lens
Body Tube
Revolving Nosepiece
Low Power Objective
Lens
High Power
Objective Lens
Stage
Diaphragm
Base
Mirror or Light
Electron Microscope
Uses electrons instead of light to make
extremely small objects visible.
Can magnify up to 2 million times their
actual size!
Ruler
Measures length or distance.
Thermometer
Measures temperature.
Graduated Cylinders
and
Beakers
Measure Volume.
Pan Balance
Measures Mass
Spring Scale
Measures Weight.
Stopwatch
Measures Time.
Microscopes and Hand Lenses
Magnify Small Objects
Telescopes and Binoculars
Reveal details of faraway objects.
Calculators and Computers
Organize Data and Make Graphs.
A Sieve
Container with mesh or perforated bottom.
Used to filter large particles out of a mixture.
Magnets – Attract metal objects
Petri Dish – Growing bacteria
Line Graphs
Visual display that uses 2 sets of data, like
showing how a variable changes over
time.
Bar Graph
Display that shows data as bars of
different length.
Circle Graph
Display that shows data as parts of a
whole.
Diagrams
Picture or group of pictures that display
data.
X – Axis
Horizontal or bottom edge of a graph.
Y – Axis
Vertical or left edge of a graph.
Prediction
A guess about what is likely to happen.
*Take out a sheet of paper.
*Put your name in the upper right hand
corner of this piece of paper.
*Label the top of the paperGroup Discussion
*Answer the discussion questions on
your own paper.
*When instructed—you will work with
your group to answer the questions
on the board.
Discussion Questions
#1 What tools would be useful for
studying the planet Mars? Identify
some of the things that can be learned
by using different tools.
#3 Make your own visual display of the
data on the board.
Quiz on Lesson 3
1. Which type of display is useful for
showing parts of a whole?
A. Line graph
B. Bar graph
C. Diagram
D. Circle graph
2. Which type of display is BEST for
showing how many rainy days there
were in each month of one year?
A. Line graph
B. Bar graph
C. Diagram
D. Circle graph
Lesson 3 Quiz
3. What is the dependent variable in this graph?
A. Mass in g
B. Volume in L
C. Volume in mL D. The substance tested
4. Based on the data provided, what do you predict
would be the mass of 50 mL of this substance?
A. 30 g
B. 50 g
C. 400 g
D. 500 g
5. Which of these tools should you use to
measure the volume of a fluid?
A. Graduated cylinder B. Pan balance
C. Computer
D. Stopwatch
6. A hand lens can be useful for studying
A. The growth of a tree.
B. The behavior of a squirrel.
C. A bird’s feather.
D. The density of a rock.
7. Suppose you want to compare the
masses of 2 mineral samples. Which
of these tools would you use?
A. Pan balance
B. Hand lens
C. Thermometer
D. Graduated cylinder
8. Describe which tools you would use
and how you would find the volume
of a piece of gold you found in a
stream?
9. The ________ is the horizontal
or bottom edge of the graph.
10. Charts and graphs allow scientists to
visualize data. Using these tools they
can make ________________ about
what will happen in the future.
**Listen carefully to the extra
credit—your mouth should not
open and your eyes should be
on your own paper!!