Weathering and Soil

An online crossword puzzle with 13 words. Play it free at AgileCrosswords.com.

Clues

• when physical processes naturally break rocks into smaller pieces
• the starting material of soil
• the remains of something that was once alive
• the process of changin once living material into dark colored organic matter
• the mechanical and chemical processes that change objects on Earth's surface over time
• combines the element oxygen with other elements or molecules
• layers of soil formed from the movement of the products of weathering
• all of the organisms that live in a region
• changes the materials that are part of a rock into new materials
• the shape and steepness of the landscape
• the average weather of an area
• mixture of weathered rock, rock fragments, decayed organic matter, water, and air
• small holes and spaces that vary in size

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