A
A chain of interactions between organisms and their environment
Ecosystem
Has particles that move freely and spread out to fill any space
Gas
Has particles that move and phase through each other
Has particles that are tight and close together
Solid
Break down dead organisms into nutrients
Decomposer
Examples of Terrestrial Ecosystems
Forest
Tundra
Desert
Grasslands
Examples of Aquatic Ecosystems
Marine
Saltwater
Low temperatures and short growing seasons
Tundra
Water is an example of a compound because it always contains two hydrogen atoms for every oxygen atom.
True
False
True
Term that describes a mixture in which the substances are mixed
Homogenous Mixture
What is the name of the galaxy that contains our solar system?
Milky Way
Which of the following is NOT a terrestrial ecosystem?
A) Desert
B) Tundra
C) Marine
Marine
Small particle that is the building block of matter
Atom
Property is measured in degrees Celsius or Fahrenheit to indicate a phase change
Temperature
Term for the temperature at which a solid becomes a liquid
Which of the following is a biotic factor
A) Soil
B) Temperature
C) Animals
Animals
Physical property that is determined by the pull of gravity on an object's mass
Term describes a mixture in which the substances are not evenly mixed
Heterogenous Mixture
Sunlight is a ______ factor
Abiotic
Matter with a composition that is always the same.
Substance
What is the chemical symbol of water?
H2O
The marine ecosystem has a higher salt content than freshwater ecosystems.
True
False
True
A substance made of two or more elements chemically joined in a specific combination.
Compound
Mass per unit volume of a substance
Density
What is the hottest planet in our solar system?
Venus