Lesson 1
Which state of matter is water vapor?
gas
If more than half of Earth is covered with water, why is freshwater so limited?
Most of the freshwater is tied up in glaciers and ice caps.
The_______ is the Earth’s main water storage and the primary source for water in the water cycle.
ocean
______ is the continuous movement of water on Earth
The Water Cycle.
______ means the original or most important.
Primary
The _____ provides the energy that makes the water cycle work.
sun
Surface water is found in lakes, rivers, swamps, marshes, the atmosphere, and ice- and snow-covered land. Why are people not always able to use water from all these source?
The water may be polluted, or it may be difficult to get to.
Water temperatures change based on how close or far away it is from the ________.
equator
_______ is the water in the atmosphere that falls to Earth as rain, sleet, snow, or hail
Precipitation
A swirling movement.
Circulation
_____ is the process in which a gas cools and becomes a liquid.
Condensation
What are the four largest sources of freshwater on Earth?
- Glaciers and ice caps
Groundwater
Ground ice and permafrost
Lakes
Through which processes in the water cycle is the ocean connected to all of Earth’s water?
Evaporation and precipitation
______ is underground water supply.
Aquifer
A slow moving body of ice on land.
glacier
Water can fall as _____, ______, _______, or _____.
rain, snow, sleet, or hail.
Water from lakes and rivers would be best for drinking because they would require the least ______for drinking.
filtration
What factors may affect the direction and movement of ocean currents?
Wind, temperature, location of land masses, and the rotation of the Earth all affect the direction and movement of ocean currents.
______ is the amount of salt dissolved in water.
Salinity
A human-made place to collect and store water.
Reservoir
Order the stages of the water cycle.
runoff, evaporation, condensation, precipatation
________ are the largest source of surface drinking water.
Lakes.
What are two examples of threats to the Shoreline?
Possible Answers:
-Building along a coast can cause pollution.
-Erosion and rising sea levels cause beaches to shrink.
-Oil Spills
-Garbage dumped into the ocean can spoil shorelines. Tides and currents leave garbage and waste on the sand.
_______ is a pattern of rising and falling water in the ocean caused by gravity.
Tide
_____ is the process of changing liquid water into water vapor.
Evaporation