To share with the entire class:

Chemical Erosion Station

• glass tray or Petri dish
• rock samples that contain calcite mineral (calcium carbonate), such as limestone, marble, certain cements/mortars
• other rock samples, such as brick, granite, most gravels
• weak acid, such as lemon juice or vinegar
• eyedropper
• magnifying glass
• paper towels

Water Erosion Station

• large container, such as a deep plastic bin at least 18 x 9 inches (46 x 23 cm)
• moist soil
• 12 coins or poker chips
• paper towels
• watering can that has several holes in the spout
• water
• ruler

Wind Erosion Station

• sand
• small-size motorized fan, handheld is preferred
• large bin or box with no top

Glacier Erosion Station

• ice cubes, enough for one per group
• modeling clay; NOT Play-Doh®
• tray
• sand
• paper towels

Temperature Erosion Station

• heat source, such as a burner or hot plate
• 3 glass beakers
• ice
• water
• plastic tongs
• goggles
• marbles, one per group

Each group needs:

• Erosion Worksheet, one per student
• Erosion Math Worksheet, one per student

The teacher needs:

• stopwatch, clock or wristwatch, to time 7-8 minute rotation intervals