Cycling of Matter
Properties of Water
Water Cycle
Water Beneath the Soil
Definitions
100
What are processes involved in cycling of matter?
Digestion and decay
100
Bonds that hold water together
What are covalent bonds?
100
What are forms in which water reaches the earth’s surface?
Rain, sleet, snow, hail or any combination of these forms
100
The downward pull of water due to gravity.
What is percolation?
100
The movement of water through the environment from the atmosphere to Earth and back
What is the water cycle?
200
To break down complex organic molecules into inorganic matter
What is the job of a decomposer?
200
Has a negative and positive side
What are polar molecules?
200
How does surface water evaporate into water vapour?
By absorbing the sun’s energy
200
What effects the size of the water table?
Amount of rainfall
200
Loss of water through plant leaves
What is transpiration?
300
What is an example of a complex molecule?
DNA molecule
300
What is the percentage of mass that water makes up in a cell?
60%
300
How can water be released from organisms back into the atmosphere?
Cellular respiration, decaying ect.
300
What two sources does fresh water come from?
Ground water and surface water.
300
The removal of soluble minerals by percolation
What is leaching?
400
What are important organic chemicals that make up your body?
Proteins, Sugars and Fats
400
Water supplies what to producers during metabolism?
Hydrogen atoms
400
What happens to precipitation that reaches Earth’s surface?
Either remains on Earth’s surface or sinks into the soil
400
As water seeps downwards it carries what to lower levels of soil?
Dissolved organic matter and minerals.
400
The type of bond that is formed between the positive end of one molecule and the negative end of another water molecule
What is a hydrogen bond?
500
What are substances that contain atoms of hydrogen and carbon?
organic compounds
500
Water supplies what to all organisms during cellular respiration?
Oxygen atoms
500
How high will water vapor rise?
Until it reaches a cold enough point to condense
500
How do plants correct the issue of leaching?
Long roots extend down and bring minerals and other chemicals to the upper levels of soil
500
The top level of the region below the ground that is saturated with water
What is a water table?
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