The Impact of Human or Natural Events on the Spheres

Feet are neat! So, if you've already walked the path of examining animal footprints with your class, put them in the shoes of early humans! A well-designed lesson incorporates video, discussion, and hands-on learning to demonstrate how...

What happens when a non-native species is introduced onto an island? Santa Cruz Island, part of the Channel Island chain located off the coast of southern California, provides the perfect laboratory for young environmental scientists to...

The lecturer describes how certain characteristics develop. In this case, he discusses eye marking. The impact of environmental factors plays a huge role in the probability of successful reproduction and the fact that favorable genes...

The peppered moth is featured in a video about natural selection. The narrator tells the story of Darwin's theory and then moves on to the principles behind natural selection and the different ways it works. Concepts covered include...

Viewers explore real-world examples of both evolution and natural selection as the instructor discusses changes to the environment, mutations causing changes in phenotypes and changing the fitness in organisms, and how humans are...

Sickle cell disease only occurs when both parents contribute the trait, and mostly in those of African descent. Where did it come from? How did it evolve? Tony Allison, a molecular biologist, noticed a connection between sickle cell and...

The second of a three-unit lesson plan, this focuses on how human-made structures affect watersheds. Using watershed models that were built during the first unit, junior geologists now place buildings, dams, or levees into the models and...

Have your class do research on natural disasters and create a presentation using this resource. In completing this activity, learners apply the five geography themes to their research. They write a paper describing their results. It's a...

Different regions of the world have greatly varying rates of lactose tolerance. Learn why this mutation spreads in some populations and not others with an educational video. Viewers consider the relationship with natural selection in...

Use this slide show to introduce your class to some of our most useful natural resources. The text beneath the photographs differentiates between renewable and non-renewable resources. The need for conservation of resources and human...