Lesson 1
What are living and nonliving things in a given area?
ecosystem
What is the process during which water vapor changes into liquid water?
condensation
What is the model showing how energy flows in an ecosystem?
food chain
What is the water that falls from clouds to Earth’s surface?
precipitation
What is the term that describes Minnesota's weather during the winter, spring, summer and fall?
climate
What is a nonliving thing in an ecosystem?
abiotic factor
What cannot be separated by chemical means?
element
What is the model showing the amount of energy available in each step of a food chain?
energy pyramid
What is the word that means "to set free"?
release
The rain that falls on to the ground during a thunderstorm is an example of:
precipitation
What is the average weather conditions in an area over time?
climate
What is the process during which liquid water changes into water vapor?
evaporation
What is the model of energy transfer showing how the food chains in a community are interconnected?
food web
What is the term for when a rabbit eats grass, a fox eats the rabbit, and decomposers break down the fox's body?
food chain
What is the process where bacteria and the plant form an interaction together?
nitrogen fixation
What are the layer of gases surrounding Earth?
atmosphere
What are unicellular organisms without a membrane-bound nucleus?
bacteria
What is the process of using chemical energy in matter to make food?
chemosynthesis
What is the term used to describe the water drops that form on a cold glass of lemonade in the summer?
condensation
What is the process that happens when a rain puddle is there at 10:00AM but is gone by 12:00PM?
evaporation
What is a living thing in an ecosystem?
biotic factor
What is the process that changes atmospheric nitrogen into compounds usable by living things?
nitrogen fixation
What is the series of chemical reactions that convert light energy, water, and carbon dioxide into the food-energy molecule glucose and give off oxygen?
photosynthesis
Producers, Primary Consumers, Secondary Consumers, Tertiary Consumers and Decomposers are examples of what term?
food web
A tree, the sun and a rock are all _________ factors?
abiotic