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Rocks come in many sizes and shapes.

Rocks change in size, shape, and other properties.

Animals and plants can change rocks and soil.

Soil consists of weathered rocks, water, and decomposed organic materials from dead plants, animals, and bacteria.

Soils are often found in layers with each layer having different properties.

Soils have properties of color, particle size, texture, capacity to retain water, and y.

Wind, water, and ice shape the Earth.

Erosion is the wearing away and moving of earth.

Rock is made of different combinations of minerals.

Soil is made from different forms of rock, plant and animal remains, and living organisms.

Soil consists of weathered rocks, decomposed organic materials, water, and gases.

Soils are often found in layers with each having a different chemical composition.

Weathered rock is the basic component of soil, the amount of soil and its fertility and resistance to erosion are greatly influenced by plant roots and debris, bacteria, fungi, worms, insects, rodents, and other organisms.

The varied materials have different physical and chemical properties, which make them useful in different ways, for example, as building materials, as sources of fuel, or for growing the plants we use as food.

Earth resources are nonrenewable.