The part of the water cycle best described as water collecting in oceans and lakes.
Collection
100
Identify the two types of organisms needed in the oxygen-carbon dioxide cycle.
Plants and animals
100
The air/atmosphere is composed of ____ % Nitrogen, ______ % oxygen, and 1% other elements.
78, 21
100
When water vapor collects and forms clouds
Condensation
100
What are the four examples of precipitation?
Rain, snow, sleet, hail
200
Liquid water being turned into a gas or vapor
Evaporation
200
Plants give off _____________ that animals need to survive
oxygen
200
Define the Nitrogen Cycle
The continuous cycle of nitrogen from the air, to land, to living things, and back again.
OR
The continuous cycle of nitrogen from nonliving to living parts of the ecosystem over and over again.
200
Rain, snow, sleet, and hail are examples of which step of the water cycle?
precipitation
200
The continuous cycle of water from the surface of the Earth to the atmosphere and back again is called the __________________________.
Water Cycle
300
Water is forever trapped in the water cycle. do water droplets always take the same trip through the cycle? Explain your answer.
No, water does not always take the same trip. Reasons vary - must be teacher-approved.
300
Animals give off ____________ that plants need to survive
carbon dioxide
300
Nitrogen must be "fixed" so that it is safe for animals to use. the process of nitrogen being "fixed" is called nitrogen __________________.
Fixation
300
A word meaning "to happen over and over again"
cycle
300
During respiration, animals breathe in _______ and breathe out carbon dioxide.
oxygen
400
What is transpiration?
Evaporation or escape of water from trees.
400
Plants use water, energy from the sun, and carbon dioxide to make their own food. The by-product released into the air is oxygen. Identify the aforementioned process.
photosynthesis
400
When an animal expels waste or dies, these organisms break down the materials and release nitrogen back into the ground or atmosphere.
Decomposers
400
What is respiration?
The process in which animals contribute oxygen to the oxygen - carbon dioxide cycle.
400
True or False: The Earth's Air/Atmosphere is made up of 78% nitrogen that we require to live. However, it's in the wrong form and must be fixed so that animals can use it.
True
500
When it precipitates, why don't oceans and lakes continue getting deeper and deeper?
Because the water evaporates into the atmosphere?
500
Animals breathe in oxygen into their lungs. From there, it oxygenates blood that the entire body needs. The by-product exhaled is carbon dioxide. Identify this process.
Respiration
500
When oxygen is combined with nitrogen atoms, it is a process called _____________. When oxygen is removed or "stolen away" from nitrogen, it goes through this process: _______________.
Nitrification, Denitrification
500
What is denitrification?
The process of oxygen being removed or stolen away from nitrogen atoms.
500
Identify two examples of legumes, which house bacteria needed for nitrogen fixation.