Primary Productivity and Food Webs
Lab Investigation #1
Oxygen is vital to life. In the atmosphere, oxygen comprises over 20% of the available gases. In
aquatic ecosystems, however, oxygen is scarce. To be useful to aquatic organisms, oxygen must
be in th
Math Review Sheet
1. Mass number = protons + neutrons
Formula for Half Life
y = 100()x
x represents the interval between half lives
y = the current amount
Half Life Fractions:
1/2; 1/4; 1/8; 1/16; 1/32; 1/64; 1/128; 1/256
Mass/2= time for one half life
Environmental Science Review Sheet
Chapters 1 and 2 and classwork
Explain the focus of environmental science.
Describe the recent trends in human population and resource consumption.
Explain what science is.
Describe the p
APES Review Worksheet #1
Use the axes to the right for the following:
a. Draw and label a line that represents linear growth.
b. Draw and label a line that represents exponential growth.
2. List the four most populated countries in the world.
1 Semester all 10 Major Topics
#1: Earth Science Concepts
Geological Time Scale:
Geologists have divided Earth's history into a series of time intervals that are variable in length; geologic time is