Download EARTH SCIENCE LABORATORY GUIDE SHEET

EARTH SCIENCE
LABORATORY GUIDE SHEET- UNIT 1 – MEASURING THE EARTH
1-P
DENSITY OF ROCKS
Problem Statement: Determine the density of an unknown sample of rocks.
Discussion: Identify the percent deviation (if any) with the density of the unknown sample of rocks.
Identify any possible sources of error encountered while conducting this lab experiment.
Supplemental Questions:
1. Why does the density of the rock stay the same even when the volume of the sample used is changed?
2. How would the volume of an irregular solid that floats in water be determined?
3. Describe, in detail, the process to be used to determine the density of a liquid.
4. Answering in terms of relative density, why does a rock sink in liquid water?
5. Answering in terms of relative density, why does gasoline “float” on top of water when the two liquids are
mixed?
1-1
GRAPH ANALYSIS :​Skills Packet
Follow the instructions of your teacher.
1-2
WHAT’S UP THERE:​Skills Packet
Follow the instructions of your teacher.
1-3
SHAPE OF THE EARTH
Problem Statement: How does the roundness of the earth compare to the roundness of the relief globe and the
blue globe? How does the smoothness of a true scale earth model compare to the smoothness of the relief
globe?
Supplemental Questions:
1. When compared at true scale, which of the following objects best represents the shape of the earth both in
terms of roundness and smoothness? An orange, a pear, or a billiard ball?
2. If a scratch 0.05 cm were cut into the surface of a 30.0 cm globe, what would be the depth of the
feature represented by this scratch on the actual Earth?
3. Explain how observations of Polaris indicate that the Earth is spherical.
4. Explain how sensitive measurements of the force of gravity provide information about the shape of
the Earth.
5. Name and describe the actual shape of the Earth.
6. a. State one observation from which you might ​
infer​
a round earth. Explain how this observation
could also be interpreted as indicating a different shape for the earth.
b. Is there any evidence that could be accepted as ​
proof​
of the earth’s shape?
1-4
LATITUDE AND LONGITUDE​
: Skills Packet
Follow the instructions of your teacher.
1-5
CONTOUR MAPPING
Problem Statement: Make a contour map of a model landscape.
Supplemental Questions:
1. Define the term gradient. What is the relationship between the spacing of isolines and the gradient of an
area?
2. What is the highest elevation on your map? What is the lowest?
3. Why would a topographic map of an area be likely to change with time?
4. What happens to a person’s elevation as they walk along a particular isoline?
5. Why is it impossible for two different isolines to intersect on a map?