Weathering and Erosion Lab
Station 1
• Students placed vinegar (an acid) on powdered calcium carbonate and watched bubbles form as a sign of a chemical reaction. This station is designed to demonstrate chemical weathering of limestone due to acid rain, such as in the Hill Country region.
Station 2
• Before After» Wave action on beaches
Station 3
• Students used straws to blow sediments. They discovered that sand is much easier to move than pebbles.
Station 4
• Erosion of a river valley• Before After
Deposition in a delta
Erosion of sediment forming river valley
Station 5
• Mechanical weathering through freezing and thawing. Marbles were repeatedly boiled and cooled in ice water.
Station 6Salt is place d in the bottom of the inner cup, which has a hole in the bottom. Then, water is poured over the top, drips through the salt dissolving some, and into the bottom cup as a solution. This represents the dissolving of rock in water that flows underground and is deposited in cave formations.
Station 7Before Weathering After Weathering
Students used a toothbrush to simulate wind erosion due to abrasion on the cliffs of the Palo Duro Canyon
Talus slope