Subhan Chaudry
12/7/10
Science Test
Ms. Fahmy
Study Guide
I. Terms
a) Element: Any substance that cannot be broken down into simpler substances.
b) Compound: When two or more elements combine chemically.
c) Proteins: Large organic molecules made of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur.
d) Food Chain: A series of events in which one organism eats another and obtains energy.
e) Food Web: The many overlapping food chains in an ecosystem arranged together.
f) Consumer: An organism that obtains energy by feeding on other organisms
g) Omnivore: A consumer that eats both plants and other organisms.
h) Herbivore: A consumer that eats only plants.
i) Carnivore: A consumer that eats only other organisms.
j) Niche: The role of a living thing in its environment.
k) Lipids: Fats, oils, and waxes.
l) Population Density: The number of individuals/particles in an area.
m) Birth Rate: The number of births in a population in a certain amount of time.
n) Death Rate: The number of deaths in a population in a certain amount of time.
o) Commensalism: The interaction with two parties in which one is benefitting while the other is not benefitting or being harmed.
p) Mutualism: The interaction with two parties in which both are benefitting equally.
q) Parasitism: The interaction with two parties in which one is being harmed while the other is benefitting.
r) Habitat: The location and surrounding environment where an organism resides.
s) Limiting Factor: An environment factor that prevents a population from increasing. Ex. Water, food, space, and weather conditions.
t) Indigenous: Native to that area.
u) Invasive: Not native to an area; invades it.
v) Immigration: Moving into a population.
w) Emigration: Leaving a population.
x) Organic Compounds: Compounds that contain the element carbon.
y) Inorganic Compounds: Compounds that do not contain the element carbon.
z) Producer: An organism that can make its own food.
aa) Nucleic Acids: Very large organic molecules made of carbon, hydrogen, nitrogen, and phosphorus.
bb) Photosynthesis: The process in which an organism produces its food with sunlight, water, and carbon dioxide.
cc) Abiotic Factors: The non-living part of an ecosystem.
dd) Biotic Factors: The living part of an ecosystem.
ee) Indirect Observation: Determining the size of a population using tracks and signs.
ff) Direct Observation: Determining the size of a population by counting all of its members.
II. Questions
a) How does the project relate to your life?
b) What is the difference between a niche and a habitat?
c) What are fungi and bacteria responsible for doing?
III. Things To Know
a) The process of interactions in an ecosystem
b) Water shapes cells.
c) Equations:
a. Population density = Number of individuals
i. Unit Area
b. If birth rate > death rate, population size increases.
c. If death rate > birth rate, population size decreases.
d) Levels of energy pyramid
e) Understanding Graphs
f) How to read a table and graph.
g) How to fill a table and make a graph.
h) Radish seeds experiment
i) Plot Study