Nature of Science Test 1 Study Guide
4) 45,000mmàkg
Metric Conversions
1) 0.70gàmg
2) 24daLàL
3) 3 weeksas
6) 27m/sàkm/hr
Significant Figures- Indicate how many significant figures
there are in each of the following measured values.
4) 246.32
5) 1.008
6) 70000
7) 107.854
Calculate the answers to the appropriate number of significant
figures
11) 658,0
10) 32.567
135.0
+ 1.4592
14) 6.47 x 64.2-
5) 715.3hLàcL
8) 0.00340
a) Accurate but not precise
precise
Calculate the answers to the appropriate number of significant.
figures
12) 45.76 x 0.25 =
13) 1.678/0.42-
b) Precise but not accurate
precise
23.5478
9) 35.609
+198.35
16) Explain the differences between accuracy and precision and
give an example for
15) 28.367/3.54-
c) Both accurate and
d) Neither accurate nor
17) Explain the Scientific Method (You may draw a diagram)
18) Explain what the independent and dependent variables are,
what is the control, what are the constants, what is bias????
19) a) What happens When the hypothesis is not
supported?
b) What happens when the hypothesis is supported?
c) Why do we need a LOT of trials in the experimental
procedure?
20) What is pseudoscience and give an example?
21) Why are models required for an experiment?
22) What is the difference between theory and scientific law?
Give examples
23) How do graphs help the scientific method?
24) Gloria wanted to find out if the color of food would affect
whether kindergarten children would select it for lunch. She put
food coloring into 4 identical bowls of mashed potatoes. The
colors were red, green, yellow, and blue. Each child chose a
scoop of potatoes of the color of their choice. Gloria did this
experiment with 100 students. She recorded the number of
students that chose each color.
A. Write the independent variable & dependent variable
(label which is which).
B. Write the number of repeated trials, 2 of the constants, and
the control (if present).
C. Write the hypothesis for the experiment (it may not be
explicitly stated).