Water Quality Unit
Objectives: After completing this lesson, students will be able to:
- Understand the issues of water pollution and the importance of access to clean water.
- Experiment with filtering various substances from water by making their own simple water filters.
- Understand the issues of water pollution and the importance of access to clean water.
- Experiment with filtering various substances from water by making their own simple water filters.
- Observe and draw conclusions based on their experiment.
Relevant Vocabulary:
Pollution: Unnatural or harmful substances.
Filtration: The process of removing matter from a liquid by means of porous media (materials with holes, various-sized).
Pollution: Unnatural or harmful substances.
Filtration: The process of removing matter from a liquid by means of porous media (materials with holes, various-sized).
Introduction Activity
Think about the last 24 hours, list all the times you used water.
| filtering_water_lab.pdf |
| water-usage_article_and_quiz.pdf |
| filtering_water_lab.pdf |
Erosion Unit
| weathering-erosion-lab-2014-08-06.pdf |
| weathering_erosion.ppt |
Physical and Chemical WeatheringE.SE.06.11 - Explain how physical and chemical weathering lead to erosion and the formation of soils and sediments.
Weathering: The process that breaks down rocks and other substances at Earth’s surface.
Erosion: The movement of rock particles by wind, water, ice, or gravity.
Mechanical Weathering: The type of weathering in which rock is physically broken down into smaller pieces by a force of nature.
Mechanical weathering breaks rock into pieces by freezing and thawing (potholes), release of pressure (like an onion), growth of plants (roots on trees), actions of animals (gopher), and abrasion (smooth rocks on beach).
Abrasion: The grinding away of rock by rock particles carried by water, ice, wind, or gravity.
Example: smooth rock on a beach.
Ice Wedging: When wedges of ice in rocks widen and deepen causing cracks in rocks.
Chemical Weathering: The process that breaks down rock through chemical changes.
The agents of chemical weathering include water (think about the antacid tablet), oxygen (rust), carbon dioxide(limestone statues caused by acidic rain), living organisms(lichens in roots), and acid rain (more rapid than CO2).
The most important factors that determine the rate at which weathering occurs are type of rock and climate.
Permeable: Means that a material is full of tiny holes that let water seep through it.
Weathering: The process that breaks down rocks and other substances at Earth’s surface.
Erosion: The movement of rock particles by wind, water, ice, or gravity.
Mechanical Weathering: The type of weathering in which rock is physically broken down into smaller pieces by a force of nature.
Mechanical weathering breaks rock into pieces by freezing and thawing (potholes), release of pressure (like an onion), growth of plants (roots on trees), actions of animals (gopher), and abrasion (smooth rocks on beach).
Abrasion: The grinding away of rock by rock particles carried by water, ice, wind, or gravity.
Example: smooth rock on a beach.
Ice Wedging: When wedges of ice in rocks widen and deepen causing cracks in rocks.
Chemical Weathering: The process that breaks down rock through chemical changes.
The agents of chemical weathering include water (think about the antacid tablet), oxygen (rust), carbon dioxide(limestone statues caused by acidic rain), living organisms(lichens in roots), and acid rain (more rapid than CO2).
The most important factors that determine the rate at which weathering occurs are type of rock and climate.
Permeable: Means that a material is full of tiny holes that let water seep through it.
