PLANT & SOIL SCIENCE
Demonstration and Talk Ideas
Exploring the World of Plants and Soils
 Talk about what soil is and how it is formed.
 Discuss plant growth factors.
 Explain the parts of a plant.
 Explain the parts of a flower.
Plant Characteristics
 Talk about how different seeds come through the soil.
 Explain the different types of plant root systems.
 Describe the purpose of roots and how they develop.
 Talk about stems and how they work.
 Explain how trees grow.
 Talk about the gases that are used by plants and given off by them.
Plant Reproduction
 Explain the life cycle of plants.
 Explain how to make a seed collection.
 Describe the parts of a seed.
 Explain different methods of germinating seeds.
 Talk about different ways that plants can be started.
Soils
 Explain how plants respond to fertilizer.
 Describe how water erodes the soil.
 Explain the difference in the amount of water that surface soil can hold compared to
subsoil.
 Describe how organic matter affects soil.
 Demonstrate how to determine soil texture by feel.
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