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How do rocks form
magnetic damping for faster stability
Comes with a screw cap
5 each 100g and 1 each 500g weights
Weathering & Erosion (DVD) holiday-gifts How do rocks formThe rocks and soil that make up Earth's surface are constantly being affected by a variety of forces, ranging from heat and frost to water and wind. In Weathering and Erosion, students will discover the natural forces that cause weathering, erosion and deposition, and see the many effects that these processes have on Earth's surface. Students will examine natural structures around the world and see how weathering and erosion have affected them, while
