Question

part 1: a water molecules journey. using the starting and ending location, fill out the other two columns. there may be more than one transition per line. the first line is done for you. the transition options are: evaporation, condensation, precipitation, seepage, collection, absorption, drinking, respiration, transpiration, urination, melting, and freezing.

starting location	ending location	transition(s) name(s)	what drives this/these transition(s)?
clouds	river
river	animal
animal	clouds
clouds	glacier
glacier	groundwater

Explanation:

Step1: Clouds to River

Water in clouds falls as precipitation (rain, snow, etc.) and then is collected in the river.
Transition(s) Name(s): Precipitation, Collection
What drives this/these transition(s)? Gravity and atmospheric conditions

Step2: River to Animal

An animal drinks the water from the river.
Transition(s) Name(s): Drinking
What drives this/these transition(s)? Thirst - biological need for water

Step3: Animal to Clouds

The animal respires and releases water vapor into the air, which then condenses to form clouds. Also, the animal may urinate, and the water may evaporate and then condense.
Transition(s) Name(s): Respiration, Urination, Evaporation, Condensation
What drives this/these transition(s)? Biological processes in the animal, heat (for evaporation)

Step4: Clouds to Glacier

Water in clouds falls as snow (precipitation) and accumulates to form a glacier.
Transition(s) Name(s): Precipitation (Snow - form of precipitation), Accumulation
What drives this/these transition(s)? Cold temperatures and gravity

Step5: Glacier to Groundwater

The glacier melts (due to heat) and the water seeps into the ground to become groundwater.
Transition(s) Name(s): Melting, Seepage
What drives this/these transition(s)? Heat, Gravity

Answer:

Starting Location	Ending Location	Transition(s) Name(s)	What drives this/these transition(s)?
River	Animal	Drinking	Thirst - biological need for water
Animal	Clouds	Respiration, Urination, Evaporation, Condensation	Biological processes in the animal, heat (for evaporation)
Clouds	Glacier	Precipitation (Snow - form of precipitation), Accumulation	Cold temperatures and gravity
Glacier	Groundwater	Melting, Seepage	Heat, Gravity