Scientific Method
What is an independent variable?
The variable in an experiment that the scientist changes
In which layer of the atmosphere does weather occur?
Troposphere
Main source of energy for weather patterns
The sun
True or false: Deforestation will decrease the amount of atmospheric carbon dioxide
False
What percentage of the water on earth is potable?
0.003%
Name a step in the scientific method
1. Identify the problem
2. Make a hypothesis
3. Perform the experiment
4. Collect data
5. Share results
Which phenomenon affects the motion of wind on earth? (Caused by the rotation of earth on its axis)
Coriolis effect
2 things needed for a hurricane
warm water and weather disturbance
What is the main human activity contributing to global climate change?
Burning fossil fuels
What is permeability?
The ability of water to flow through a substance
Change 12 cm to m
0.12 m
What is the cause of seasons?
Tilt of the earth's axis
What is the importance of the ozone layer?
to stop harmful UV rays from entering the earth's atmosphere
What is the Urban Heat Island effect?
Cities are warmer than surrounding areas because concrete absorbs heat
What is a watershed?
An area that water drains into one place (river, lake or ocean)
What is the SI unit of measurement for mass?
kilograms (kg)
How long does it take the earth to complete one rotation?
24 hours
What is the difference between weather and climate?
weather is the current state of the atmosphere and climate is the long term trend of precipitation and temperature in an area
What is a consequence of warmer oceans?
Coral bleaching
What effect would a farm on the border of a watershed have?
The animal waste, fertilizers and pesticides will pollute the watershed.
What is a constant variable?
A constant is something that stays the same in the experiment. The scientist does not change it.
What does Kepler's second law state?
The size of a planet's orbital period is dependent on how far the planet is from the sun
What weather would you expect at a cold front?
What is the gas responsible for forming acid rain?
Sulfur dioxide
What is subsidence?