True or false. A fair test is designed to only test one question (variable) at a time.
True
100
Describe how sound waves move.
Sound waves like the waves made by dropping a rock into a pond. Sound waves spread out in all directions from the source of the sound.
100
True or false. Sound always travels in waves and carries energy.
True- All waves carry energy.
100
What is the hydrologic cycle?
The water cycle
100
Does the water cycle require the sun?
Yes, because the sun evaporates the water, it is a critical part of the water cycle.
200
Give an example of condensation.
The 'sweat' on the outside of a can. (Gases are turning into liquids)
200
What is evaporation?
Liquid turns into a gas. (Ex: Gas above boiling water)
200
What is it called when precipitation gathers and flows down to the lakes and oceans?
Surface runoff
***Groundwater is water that is found within the Earth.
200
All gases that surround the Earth are known as the Earth's __________________.
atmosphere
*The main component (gas) in the Earth's atmosphere is nitrogen.
200
What is the water cycle?
The process in which water circulates from the oceans to the clouds to the land to the rivers, and then accumulates back into the oceans. It is a continual process and does not stop.
300
What might happen if the Earth didn't have an atmosphere?
We wouldn't be able to breathe.
300
Make a list of the layers of the atmosphere, starting closest to the Earth's surface and going out into outer space.
Thermosphere (farthest from Earth)
Mesosphere
Stratosphere
Troposphere (closest to Earth)
300
Tell what happens in the troposphere.
Earth's weather occurs here.
300
What does the mesosphere do for the Earth?
Protects the Earth from meteoroids.
300
What layer of the atmosphere contains the ozone layer?
Stratosphere
400
What does the prefix 'thermo' mean?
Temperature
400
What is an air mass?
A body of air that has the same temperature throughout.
400
What is a front?
The boundary between two air masses?
400
What weather usually occurs when a cold front is passing?
When thinking about weather and climate, what is always changing and difficult to predict.
Weather
500
When thinking about weather and climate, what are the long term conditions, found in the lower atmosphere, that are the average weather conditions found over a long period of time.
Climate.
500
When thinking about weather and climate, what are the short term conditions, found in the lower atmosphere, such as precipitation, storminess, or wind.
Weather
500
Understanding _______________ allows us to make educated guesses and helps us to predict what type of weather is coming.
Climate.
500
On a weather map, how are warm and cold fronts described?
Warm- Red, half circle lines
Cold- Blue, triangle lines