Water
Water is made up of what 2 elements?
Hydrogen and Oxygen
What is another world for accumulation?
collection
What is water pollution?
The contamination of water by harmful substances.
What is filtration?
Filtration is the process of removing dirt, particles, and harmful substances from water.
What are we building for our next project in class?
A water filter
What percent of the world is covered in water?
71%
What is the name for water falling from the sky as rain, snow, sleet, or hail?
Precipitation
T or F: All water pollution is visible
False – some pollutants are invisible chemicals.
Why do we filter water?
To make it cleaner and safer to drink
What global problem is water filtration trying to help solve?
Water poverty, Water scarcity, Lack of access to clean water
What percent of the water in the world is freshwater?
3%
What stage of the water cycle is in charge of creating clouds, fog, and dew?
Condensation
What is water poverty?
The lack of access to sufficient, affordable, and safe water resources impacting individuals and communities.
T or F: All bacteria in water is visible.
False, most bacteria found in water are invisible to the naked eye
What is the stomata?
The "pore-like" structures on a plant's leaf open and close to control the amount of water in the plant.
T or F: Glaciers are a result of condensation
False, it's a result of precipitation
What are the 4 factors that affect evaporation?
Temperature, Surface Area, Air Temperature, and Humidity
Give 3 examples of ways water can get polluted.
Name 3 natural or man-made materials that can be used to filter water.
sand, gravel, cotton, cloth, charcoal, or activated carbon
What African country did the video on water scarcity take place in?
Uganda
Give 5 examples of freshwater bodies of water.
Rivers, lakes, streams, ponds, creeks, glaciers and ice caps
List the 6 stages of the water cycle in order.
Evaporation, Transpiration, Condensation, Precipitation, Runoff, and Accumulation
How does pollution in the ocean affect the food chain?
Polluted water can poison small animals, which affects the entire food chain. If humans eat the infected animals, they can get sick and catch diseases.
How can you filter salt out of saltwater?
By boiling it, distillation, or reverse osmosis
Rainwater flows into a storm drain and then into a river. What is that called?
Runoff