biosphere
what is an ecosystem?
all living and non-living things in an environment.
what are the three natural cycles?
water, nitrogen, carbon, & phosphorous.
what is a chemical compound?
when atoms of two or more elements react with one another.
water formula
H2O
define biotic and abiotic.
biotic=living
abiotic=nonliving
define evapotranspiration.
water is soaked into rots of plants ten evaporates from leaves.
how are atoms held together?
bonds
evaporation
when a liquid turns to gas.
what is an organism?
an individual that carries out life processes.
how do plants use co2?
photosynthesis
define covalent bonds
when atoms share electrons
What is cohesion
when water molecules stick to gether.
a habitat is___
an organism's physical environment.
what is nitrification?
the process in which nitrogen becomes usable by plants.
define ionic bonds
electrons are transferred between atoms
what is adhesion?
how water can stick to other things.
a niche is___
an organism roll in their environment.
what is the formula for respiration?
602+C6H1206=6CO2+6H20
what happens when bonds are formed and broken
energy is used and released.
why is water denser than ice.
when water freezes its molecules slow down, spread out, and create a pattern becoming less dense instead of denser.