This document provides instructions and reminders for a chemistry class. It includes: 1) A list of materials and assignments needed for class, including biochemical calculations, an updated lab log, and graphs to be created. 2) Reminders about upcoming tests and progress notices. 3) Background information on the most common elements that make up living things. 4) Directions for creating three graphs analyzing body composition and the distribution of elements on Earth. 5) Examples of the completed graphs. 6) A task list of assignments. 7) Instructions to complete homework by the next class period.

1. Today in Chemistry
You will need:
1) Biochemical Calculations– 1 page 2
sides
2) Log #4 – Update w/ points

2. Reminders
1) Test #3 Retakes/Takes – Ends
Wednesday
2) Progress Notice to be passed out Wed
– Please check grades for accuracy

3. There are over 90 elements known in the
universe. Yet, only a handful of elements
make up most of any organism. The most
common elements that make up living
things are carbon, hydrogen, nitrogen,
oxygen, phosphorus and sulfur. These six
elements make up more than 96% of your
body mass.

4. You will be creating 3 graphs using the
information from this document.
Graph #1
You will need to access the metric converter
on Learning Point to change your mass in
pounds to kilograms.
Using your mass in kilograms you will
determine the percentage of elements in
your body and create a double line graph.

5. Graph #2
Create a bar or column graph that
represents the percent of water in each of
the different body parts.
Graph #3
Create a pie graph that represents the
percentage of mass of elements on Earth.

6. Mass vs. Element
Henry Smith, Per 9
0
10
20
30
40
50
60
70
O
xygen
C
arbon
H
ydrogen
N
itrogenPhosphhorus
Sulfur
O
ther
Elements
Massinkg
Percent of Mass
Mass in kg
%of Water vs Body Part
Henry Smith Period 9
0 20 40 60 80 100
Brain
Bone
Kidney
Muscle
Blood
BodyPart
%of Water
% of Water
Percentage by Mass of Elements on Earth
Henry Smith Period 9
47%
28%
8%
5%
4% 3% 3% 2% Oxygen
Silicon
Aluminum
Iron
Calcium
Sodium
Potassium
Magnesium
Examples

7. Task List
1) Biochemical Calculations – 1 pgs 2
sides – Due tomorrow at the end of the
period.
2) Answer Questions in bullet format
3) Question #5 – Info Hyperlinked on
Learning Point
4) Question #7 – Do as a Comparison
Chart

8. Homework
1) However much you need to complete
so this assignment can be turned in
by the end of the period tomorrow.
2) Any missing work.