1. Lesson 2 Scientific Tools

2. Organism(s) Living Things

3. Microorganism(s) Living thing too small to see with the unaided eye.

4. Compound Light Microscope Uses pairs of lenses to form a larger image.
Ocular Lens
Coarse Adjustment Knob
Body Tube
Fine Adjustment Knob
Revolving Nosepiece
Arm
Low Power Objective Lens
Clips
High Power Objective Lens
Stage
Inclination Knob
Diaphragm
Base
Mirror or Light

5. Electron Microscope Uses electrons instead of light to make extremely small objects visible. Can magnify up to 2 million times their actual size!

6. Ruler Measures length or distance.
Meter – Longer lengths
Centimeter – Shorter lengths
Liter – Measure liquids
Milliliter – Measure liquids

7. Thermometer Measures temperature.

8. Graduated Cylinders and Beakers Measure Volume.

9. Pan Balance Measures Mass or Density Density is mass divided by volume or

10. Spring Scale Measures Weight.

11. Stopwatch Measures Time.

12. Microscopes and Hand Lenses Magnify Small Objects

13. Telescopes and Binoculars Reveal details of faraway objects.

14. Calculators and Computers Organize Data and Make Graphs.

15. Line Graphs Visual display that uses 2 sets of data, like showing how a variable changes over time.

16. Bar Graph Display that shows data as bars of different length.

17. Circle Graph Display that shows data as parts of a whole.

18. Diagrams Picture or group of pictures that display data.

19. X – Axis – Horizontal or bottom edge of a graph
X – Axis – Horizontal or bottom edge of a graph. Y – Axis – Vertical or left edge of a graph.

20. A Sieve – Container with mesh or perforated bottom
A Sieve – Container with mesh or perforated bottom. Used to filter large particles out of a mixture.

21. Magnets – Attract metal objects

22. Petri Dish – Growing bacteria

23. Prediction A guess about what is likely to happen.

24. Discussion Question
What tools would be useful for studying the planet Mars? Identify some of the things that can be learned by using different tools.

25. Quiz on Lesson 2
Which type of display is useful for showing parts of a whole?
A. Line graph B. Bar graph
C. Diagram D. Circle graph
Which type of display is BEST for showing how many rainy days there were
in each month of one year? + +

26. + + Lesson 2 Quiz Continued
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?
30 g B. 50 g
C. 400 g D. 500 g +

27. Quiz on Lesson 2 Continued
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 + + +

28. Lesson 2 Quiz
8. You want to know whether adding sugar changes the temperature at which water freezes. Which of the following tools would NOT be useful for studying this?
Pan Balance
Thermometer
Beaker
Microscope +