Percents
What percent of Earth's surface is covered by water?
71%
(70% is accepted too)
What kind of water is found most on Earth?
Salt water
In the water cycle, this is the process where water changes from liquid to a gas and goes up to the atmosphere.
Evaporation
What is the step called where you make an educated guess?
Hypothesis
What percent of Earth's water is salt water?
97%
What kind of water can be found in a river?
Freshwater
In the water cycle, this is when water falls back to the surface of the Earth as rain, snow, sleet, or hail.
Precipitation
How many steps are in the scientific method?
6 or 7
What percent of Earth's water is usable freshwater?
1%
What is Earth's nickname AND why?
The Blue Planet because most of Earth's surface is covered in water.
In the water cycle, this is the step where water vapor turns from a gas back into liquid and clouds begin to form.
Condensation
What is the last step of the scientific method called?
Conclusion
What percent of Earth's water is all of the freshwater?
3%
If you were to follow a river's flow (say in a tube), you would eventually end up where?
The ocean
In the water cycle, this is when water is flowing across Earth's surface due to a lot of water in an area.
Runoff
What do we call the thing that changes in an experiment?
Variable
What percent of Earth's surface is NOT water?
29%
Explain where many rivers tend to begin and why.
Rivers usually start in the mountains. The combination of rain/snow and melting glaciers create these rivers.
Why does groundwater move slowly through the water cycle?
It is located underground and the sunlight cannot heat the water and cause it to evaporate.
Why is it important to record data in an experiment?
Keep track of results; not forget results; allows for experiments to be repeated; answers may vary.