Household Chemicals & the Environment
Students conduct a laboratory experiment designed to investigate the effects of chemicals, soil quality and pollution on seed growth and plant yield. They consider how best to maximize agriculture in the long term.
9th - 12th Science 3 Views 9 Downloads
Condensation Polymerization: Preparation of Two Types of Polyesters
College-level or AP chemists use phthalic anhydride to synthesize two different polyesters, one linear and one cross-linked in structure. A detailed materials list and well-written procedures are provided on a lab sheet. Learners write...
11th - Higher Ed Science
How Farming Planted the Seeds for the Internet
Is farming the greatest innovation in all of history? Watch as modern technology and advancements are traced back to the invention of farming in the Neolithic Revolution. The video illustrates how agricultural surplus led to division of...
4 mins 7th - 12th Science CCSS: Adaptable
Soil, Designer Soil: From Rainforests to the Prairie
Learners explore the role and importance of soil in the ecosystem. In this Science and Social Studies lesson, students complete an experiment using various kinds of soil and clay and then examine how soil has a direct impact on our...
6th - 9th Science