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Erosion UNIT



OVERVIEW



How do water, wind, gravity, and temperature play a role in erosion? In four interactive lessons, students will wear safety goggles to demonstrate the forces of wind and the movement of water in the transportation and deposition of weathered rock. Distinction between mechanical and chemical weathering will be made through a lab activity involving water, salt water, vinegar, and chalk. If a freezer is available, the students will be able to experience how freezing and thawing is an active part of weathering. Using a set of plastic bins and sand, students will create sand dunes, build rivers, model landslides, and demonstrate earthquakes. All of these lessons involve the use of water, therefore a protective tarp will be provided for each small group, but working outdoors is highly encouraged. A lesson plan timeline averages 50 minutes, but can easily be broken into smaller sessions. All lessons are organized to enable the teacher to maximize contact time with the students and minimize preparation time.


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What's included



Erosion Lesson #1

What's included: 9 protective table tarps; 8 Erosion kits (each kit includes: 1 graduated cylinder, 1 minute hour-glass timer, 1 squeeze bottle, 1 plastic rectangular container with lid); 8 Weathering kits (each kit includes: 6-4 oz. plastic cups with lids, 2 plastic spoons, 1 craft stick, 6 pieces of chalk, 2 small paper condiment cups, 4 straws, 1 container of air-dry clay, 1 bag of sand); vinegar; salt; lemon-lime soda; paper towels; disinfecting wipes; 8 antacid tablets; 32 small river rocks; 2 trays; class set of Weathering Lab Activity sheets.


Erosion Lesson #2

What's included: 9 protective table tarps; 8 Erosion kits (each kit includes: 1 graduated cylinder, 1 minute hour-glass timer, 1 squeeze bottle, 1 plastic rectangular container with lid); 8 small bins with lids; 8 large bins; 40 straws; 8 Sand Movers kits (each kit includes clear plastic box, bag of sand, plastic cup, ruler, bag of sticks, plastic straw); 16 wax paper squares; 8 bars of soap, disinfecting wipes: Erosion Lab Activity sheets.


Erosion Lesson #3

What's included: 9 protective table taps; 8 Erosion kits (each kit includes: 1 graduated cylinder, 1 minute hourglass timer, 1 squeeze bottle, 1 plastic rectangular container with lid); 8 small bins with lids; 8 large bins; 350 ml bags of sand; 12 water bottles; 8 Sedimentators; Water Erosion Lab Activity sheets


Erosion Lesson #4
What's included: 9 protective table taps; 8 Erosion kits (each kit includes: 1 graduated cylinder, 1 minute hourglass timer, 1 squeeze bottle, 1 plastic rectangular container with lid); 8 small bins with lids; 8 large bins; 12 water bottles; Rapid Erosion Lab Activity sheets.