Shared Flashcard Set

Details

2nd Final Review
N/A
44
Science
8th Grade
05/30/2011

Additional Science Flashcards

 


 

Cards

Term
Independent variable
Definition
The variable that you change
Term
compound
Definition
2 or more elements that are not chemically combined
Term
Constants
Definition
variables that are not tested that could alter the results
Term
What is the scientific method(experimental design)?
Definition
[image]
Term
What are the limitations of scientific models?
Definition
doesn't act exactly like the things they model
Term
How do you find the atomic number?
Definition
number of protons & electrons
Term
How many electrons can the first level hold? And how many can the 2nd & 3rd hold?
Definition

First: 2

Second & Third: 8

Term
Elements in the same .... are simliar to each other.
Definition
family
Term
Group 18 are ... ... & are the most ... because their outer shell is ....
Definition
noble gases, stable, full
Term
Formula of Density
Definition
Mass/Volume
Term
The left side of the chemicals equations is on the .... side and the other one on the right side is the ....
Definition
reactants, products
Term
The Law of Conservation of Mass
Definition
has to have the same number and same kind of atoms
Term
.... is stored chemical energy.
Definition
Fuel
Term
Energy is ....
Definition
conserved
Term
Tempature
Definition
average kinetic energy
Term
Isolines
Definition
show areas of equal pressure on a weather map
Term
Heat & Pressure
Definition
Metamorphic
Term
Melting & Cooling
Definition
Igneous
Term
What is physical weathering?
Definition
Abrasion, Wetting and drying, freezing and thawing, & thermal expansion and contraction of minerals
Term
What is erosion and how to reduce erosion?
Definition
wearing away rock & build and protect soil, ground cover selection, handle steep slopes, use plants.
Term
What is deposition?
Definition
laying down of sediment from wind, water, etc.
Term
What is acid rain?
Definition
polluted rain
Term
What is run-off?
Definition
water pollution
Term
What is the sequence of rock structure?
Definition
element, mineral, rock, crust
Term
Moh's hardness scale
Definition
[image]
Term
What is neap tide?
Definition
Lowest high tide and occurs during the first and third quarters of the moon.
Term
What is an ecosystem?
Definition
organisms and their environment
Term
What is biodiversity?
Definition
range of organisms in environment
Term
What is limiting factors?
Definition
is a factor that controls a process
Term
Carrying Capacity
Definition
number of things or people allowed
Term
Hierchy if Biosphere
Definition
organism, population, community, ecosystem, biosphere
Term

 

Desert

Definition
drought, little vegation, mostly sand and rocks
Term
Grassland
Definition
grass is main vegatation
Term
Tundra
Definition
treeless, frozen caps
Term
Rainforest
Definition
alot of rainfall with big leafed trees
Term
Mass Extinction
Definition
destruction of whole species
Term
Ecological Success
Definition
replace orignal inhabitats
Term
Primary Succesion
Definition
starting with little soil
Term
Secondary Succesion
Definition
started by event
Term
nervous system
Definition
large system of nerves
Term
Homeostatis
Definition
state of eqilibruim
Term

Blood Glucose

 

Definition
The main sugar that the body makes from the food in the diet.
Term
Body Tempature
Definition
thermoregulation
Supporting users have an ad free experience!