Chapter 1
Describe the arrangement of the atoms in a water molecule.
Two positively charged hydrogen atoms and one negative charged oxygen atom.
What is desalination?
Desalination is the process of removing salt and minerals from water.
True or False: When a material is permeable water can't pass through.
False; water is able to pass through permeable materials.
In order for a question to be considered scientific inquiry what must it be?
What is testable.
Ch.1 Section.1: Earth:The water Planet
~Define the term: Condensation
~Condensation: The process by which a gas changes to a liquid.
Where is most freshwater located?
Most freshwater is located in icecaps.
Name one factor that affects water quality?
Example: Diseases causing organisms
True or False: Pure water has a pH of 7.
True.
Out of these examples which is quantitative data?
A) The mouses hair was brown.
B) The mouse ran really fast.
C) The mouse is 3cm long.
C) The mouse is 3cm long.
Ch.1 Section.2: Earth: the water Planet
~Define the term: Habitat
~Habitat: The place where an organism lives and where it obtains all the things it needs to survive.
How do ponds and lakes form?
Ponds and lakes form when water collects in hollows and low-lying areas of land.
What is a pesticide?
A pesticide is chemical intended to kill insects and other organisms.
True or False: The combined level of two minerals-calcium and magnesium-is called harndess.
True.
what is a variable?
A variable is a factor in an experiment that can change at any time.
Ch.2 Section 2: Water to Drink
~Define the Term: Hardness
~Hardness: The level of the minerals calcium and magnesium in water.
Name the three most common types of freshwater wetlands.
The three most common are marshes, swamps, and bogs.
What can you do to protect yourself from a drought?
1) stay on high ground
2) watch what water you're drinking
3)Don't drive whatsoever
4)stay away from power lines
True or False: Having disease causing organisms present in water doesn't affect the quality of the water.
False; The presence of disease causing organism can drastically affect the water quality.
Why do scientist only test one variable at a time?
So if something goes wrong or right they can track the source of what caused it.
Ch.2 Section 1:Water Supply and Demand
~Define the term: Irrigation
~Irrigation: The process of supplying water to areas of land to make them suitable for growing crops.
Give an example of one permeable material.
An example could have been sand or dirt.
What is a drought?
A drought is a long period without any sort of precipitation.
True or False: The central theme of scientific inquiry is questions.
True.
What is the difference between and independant and dependant variable?
A independent variable gets changed purposely during an experiment while a dependant variable relies on the independent variable for change to occur.
BONUS!!
~Define the term: Scientific Inquiry
~Scientific Inquiry: The diverse way in which scientist study the natural world.