Begin with a captivating question: 'Have you ever wondered how the soil beneath your feet is formed?' Introduce the concept of weathering and its role in soil formation.

Explain the process of weathering and how it breaks down rocks into smaller particles, contributing to soil formation.

Discuss the components of soil, including weathered rock and organic matter, and their roles in soil development.

Watch the 'Types of Soil' video to understand the composition and characteristics of different soil types. This video helps illustrate how soil properties like air and water retention are affected by particle size.

Explore the layers of soil, including topsoil, subsoil, and bedrock, and their characteristics.

Engage students in a soil classification activity where they collect soil samples from different locations and observe their properties using a hand lens.

Use the 'Observing Soil' assessment to guide students in analyzing soil samples for color, particle size, and humus content. This activity assesses their understanding of soil properties.

Assign students to write a short paragraph describing how weathering contributes to soil formation and the importance of topsoil for plant growth.

Conduct a class discussion to review the different layers of soil and their characteristics. Ask students to share their observations from the hands-on activity.

Reflect on the importance of soil in ecosystems and its role in supporting plant life. Discuss the nutrients and minerals found in topsoil and their significance.

Use the 'All About Soil – Comprehension' assessment to evaluate students' understanding of soil composition and layers. This activity reinforces vocabulary and concepts through fill-in-the-blank exercises.

Encourage students to take the unit quiz to test their comprehension of the material covered in the 'How Soil Forms' lesson.