PURPOSE:
The purpose of this activity is for students to examine the chemical
composition of the human body and ocean water. From this activity
students will gain a familiarity with some of the common elements in
our environment. This activity is also intended to give students
practice using the graphing program in Apple Works.
MATERIALS:
In order to complete this exercise students will need:
A computer with Apple Works software.
Data of the constituents in the human body and in seawater.
PROCEDURE:
Open a Apple works spreadsheet.
Set up an appropriate spreadsheet to achieve the types of graphs
described below.
Enter the data from below. Be aware that you may have to interpret
and alter some of the data.
Graph the data as a pie chart for the principal components of
seawater and as a side by side bar graph for seawater vs. the human
body.
Paste your spreadsheet and graph into a word processing document and
answer the questions.
DATA:
QUESTIONS:
Write out the answers to these questions in your document. Submit a
copy of your document in the science submit folder.
Describe the steps you took to create the
graphs.
Describe the steps you took to paste the spreadsheet and graph into
your word processing document.
Why is the ocean salty?
Why are the elements in the human body similar to those in the
ocean?
What are the main elements in the earth's crust?
check your answer here... after you are done.