Composition of Matter
Students distinguish between substances and mixtures by creating concept map, differentiate between solutions, colloids and suspensions, classify objects as elements, compounds, and heterogeneous or homogeneous mixtures.
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Classification of Matter
Steel is an example of homogeneous mixture, also called an alloy, which is made of iron and carbon. The presentation introduces learners to elements, compounds, and mixtures. They explore their similarities and differences, and then take...
9th - 12th Science CCSS: Adaptable
The 2,400-Year Search for the Atom
From ancient Greek philosophers to early American Quakers, people have sought to understand the composition of matter for millennia. Follow along with this video as it explores the long scientific journey that eventually led to the...
5 mins 5th - 12th Science CCSS: Adaptable
Charles Darwin Meets John Paul II
If you teach AP English language and composition and are looking for a way to address the differences between written and spoken arguments, consider this instructional activity. Over the course of three days, class members research...
11th - 12th English Language Arts CCSS: Adaptable
How Cosmic Rays Help Us Understand the Universe
You may not realize it, but the earth is constantly receiving messages from all over outer space. Follow along as this video investigates how these cosmic rays carry information that can help humans better understand the composition of...
5 mins 7th - 12th Science CCSS: Adaptable