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plants growing in soil with with mineral nutrients from soil

Digging Into Nutrients

  • Lesson
  • Grades 6 – 8

In this lesson, students will gain background knowledge of the nutrient requirements of plants, how those nutrients are obtained by the plant, what farmers must do if the nutrients are not available in soils, and current issues related to agricultural production.

tractor spreading manure fertilizer on a field

Can We Have Too Much of a Good Thing?

  • Lesson
  • Grades 6 – 8

In this lesson students will understand that plants require nutrients in the proper concentrations. Students will discover that plants can be damaged or killed by either too many or too few nutrients.

Deficiency of minerals in plant. lack of nitrogen, potassium. Sick yellow currant leaves

Plant Nutrient Deficiencies (Grades 6-8)

  • Lesson
  • Grades 6 – 8

Students discuss the definition of “fertilizer” and relate it to plant nutrition and the need to restore nutrient balance in agricultural soils. They discuss how people and crops can suffer from nutrient deficiencies. Students assume the roles of plant doctors and diagnose nutrient deficiencies in corn plants.

hand holding soil

Properties of Soils (Grades 6-8)

  • Lesson
  • Grades 6 – 8

Students examine the components of different soils and recognize how sand, silt, and clay particles affect air space and water absorption.

roots of a plant growing in the soil

Plant-Soil Interactions (Grades 6-8)

  • Lesson
  • Grades 6 – 8

Students will recognize that plants remove nutrients from the soil, explain the roles of diffusion and active transport in moving nutrients from the soil to the plant, and relate the root and vascular systems of the plant to the human circulatory system.

Earthworm on soil

It's a Dirty Job

  • Lesson
  • Grades 6 – 8

In this lesson, students will create mini habitats to observe earthworm behavior and learn about the important role that earthworms play in decomposition and plant growth.

hand holding fertilizer close to soil and plant

The Right Diet for Your Plants

  • Lesson
  • Grades 6 – 8

In this lesson, students will learn how to read a fertilizer label, understand the components of fertilizers, and explore factors for choosing the appropriate fertilizer for a given situation. Students will use their knowledge and conduct research on one type of soil supplement to design a persuasive product advertisement.

Sea fish farm

Overfishing and Aquaculture (Grades 6-8)

  • Lesson
  • Grades 6 – 8

Students discover the sources of various fish and seafood, compare wild-caught and farm-raised aquaculture systems, and use a simulation to learn how overfishing can damage the ocean ecosystem.

Apple sliced in segments to represent the earth and our use of the land surface

Land and Soil in the Ecosystem

  • Lesson
  • Grades 6 – 8

Students use an apple to represent the Earth and discover how our land resources are used. Through critical thinking, students discover why topsoil is a nonrenewable resource, the importance of soil to our food supply, and factors that impact topsoil distribution in different regions.

Close up view of drip irrigation pipe with water

Water Ops for Growing

  • Lesson
  • Grades 6 – 8

Through project-based learning, students design and create a smart watering system for a small herb garden.

DNA helix

DNA: Expressions in Agriculture

  • Lesson
  • Grades 6 – 8

This lesson centers around the activity of extracting DNA from a strawberry while highlighting careers in biotechnology and agriculture.

3d DNA helix structure

Use of Biotechnology in Selecting the Right Plants

  • Lesson
  • Grades 6 – 8

Students will simulate how a type of biotechnology called Marker Assisted Selection (MAS) is used to identify crop plants that have desirable traits such as sweet tasting fruit or natural resistance to a pest or disease.