Unit 1 Study Guide
Scientific Investigation
1) Which step of the scientific method is a prediction? ____________________________
2) Which step of the scientific method involves writing down observations during an experiment?
______________________________________
3) What is an independent variable?
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4) What is a dependent variable?
________________________________________________________________________________________
5) What is a constant? ________________________________________________________________________
6) What is the difference between a control group and experimental group?
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7) Bob wants to investigate how calcium in soil impacts the color of maple tree leaves. He took 2 maple trees that
were each 1 year old, that were the same height, and that were grown in the same location and planted them in
two different soils. The only difference between the two soils was the calcium content. One had 0% calcium,
and the other one had 50% calcium. Bob checked the trees every other day, and compared the leaf color to a
color chart he had. He recorded his observations every time he compared the leaves to the chart.
a. Independent variable: _______________________________________________________________
b. Dependent variable: _________________________________________________________________
c. Control group: ______________________________________________________________________
d. Experimental group: _________________________________________________________________
e. 2 Constants: ________________________________________________________________________
Density
8) What is the formula for density? ______________ Mass? _________________ Volume? ______________
9) If I have a block that is 210g and measures 2cm by 5cm by 7cm, what is its density?
10) Does the block in #9 sink of float in water? ______________________________
11) I have a graduated cylinder with 30 ml of water in it. I place a 35g sphere into it, and the water level rises to 35
ml. What is the density of the sphere?
12) Why does warm fluid rise while a cold fluid sinks? __________________________________________________
Mapping
13) What makes a Mercator map (like the one on pgs. 10 and 12 in your packet) so inaccurate?
___________________________________________________________________________________________
14) What is the highest degree that longitude goes to? _________________________________________________
15) What is the highest degree that latitude goes to? ___________________________________________________
16) If I go 15 degrees longitude to the west, I ( add or subtract ) an hour.
17) What are the latitude and longitude coordinates for the following:
A: ___________________________ B: ______________________________ C: _______________________________
18) If it is 5 PM at point B, what time is it at point C? _________________
City
Bombay, India
Aberdeen, Scotland
Sydney, Australia
Sao Paulo, Brazil
Cairo, Egypt
Latitude
19°N
57°N
34°S
23°S
2°N
Longitude
48°E
9°W
151°E
46°W
21°E
19) List the cities in order from farthest north to farthest south (hint: look at latitude):
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20) List the cities in order from farthest west to farthest east (hint: look at longitude):
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