Soil and Agriculture: Lesson 4 - Agriculture and Soil

Ready to roll up those sleeves and get your hands dirty? Dirty with soil science content, that is! Overcome those "But it's just dirt" objections with a trip outside to collect soil samples for some in-class analysis. Use the...

Young scientists show how carbon dioxide in the air affects plant growth. This math and science activity provides a good platform for learners to combine scientific knowledge with mathematical representation of data. A simple, yet...

Soil scientists gain experience with an infiltrometer can to determine the infiltration rates at different locations on campus. If you are using the entire unit, the class has already analyzed water flow and soil types, so they should...

How do we predict future population growth? Young researchers investigate various factors affecting the size of our population. As they calculate and interpret graphs to determine factors that could potentially affect increases...

Students list sources of phosphorus in soil. They explain how phosphorus is removed from the soil and used by plants. Students list the symptoms of insufficient or excess phosphorus. Students perform experiments to examine the effect of...

From types of rocks to types of weathering, learners gain knowledge on minerals, composition of soil, and the effects of weathering on Earth.

Students examine the process of photosynthesis; its products and reactants, and the sequence of the process. They diagram the light reactions, record observations of plants, and discuss how difficult it is to measure plant growth as it...

Young biologists discuss the reasons behind the current use of the plant identification system. They get into groups and identify the characteristics of each species of plant which is described. The keys needed for groups to make...

Identify natural resources in the world and how they translate into economic development. For this global economy lesson, your class will utilize the Internet to view an Oregon Time Web which they research to examine the history of...

If any of the limiting factors in an environment change, both animal and plant populations also change. The video explains two different models of growth and the impact of limiting factors. It highlights the carrying capacity of an...