Tree Roots and Erosion

This image shows tree roots that would normally be underground but have been exposed due to erosion.

• How did the tree continue to grow after much of the soil washed away?

• What does the tree need to grow?
• Where can plants get the materials they need to grow?
• How can a tree respond to flooding?

Students could:

• Individually complete a notice and wonder chart about the photograph then start a class chart to collect observations and questions.
• Observe trees and plants around school and home, then share all of the places they find them growing.
• Reviewing the needs of plants set up experiments where they compare the growth of plants under different conditions. Observe their plants over several days/weeks.
• Observe their experiments then analyze and present data defending their arguments of what plants need to grow with evidence.
• Have a debate around what need(s) of plants is necessary for growth providing evidence to support arguments. 
• Investigate how flooding impacts plants and animals by visiting or viewing photographs/videos of areas after flooding. 

• PBS LearningMedia | Hero Elementary: What Do Plants Need?: In these Hero Elementary activities, children learn about the basic needs of plants. They discuss what plants need to live and grow. They can share what they know about plants from their family and community lives. Children observe, investigate, record, and share what plants need to live and grow. They learn that plants need water and light to live and to make food.
• Wonderopolis | Can Plants Grow Without Soil?: A kid-friendly article discussing hydroponics and how to start a hydroponic garden.
• Iowa DNR: This website provides information on Iowa’s State Forest Nursery and trees native to Iowa.