Understanding Evolution: Homology and Analogy
For this understanding evolution worksheet, 9th graders define homology and analogy. Students compare and contrast similar structures in several given species.
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The Effect of Natural Selection on Genes, Traits and Individuals
Rotating through five stations, evolutionary biologists explore the question of how changes in DNA facilitate the changes in a population over time. High-quality, colorful cards of animals, skeletons, skulls, and DNA sequences can all be...
9th - 12th Science CCSS: Designed
Evolution: It's a Thing
Evolution is a theory but thank goodness gravity is a law. What is the theory of evolution and what are the facts supporting this theory? Here's a short video that explains how fossils, homologous structures, biogeography, and direct...
12 mins 9th - 12th Science CCSS: Adaptable
What is Natural Selection?
If you carefully observe populations with short life cycles, you can observe natural selection happening. The video explains what natural selection is, how scientists theorized it, and how science proves the concept. It highlights the...
9 mins 6th - 12th Science CCSS: Adaptable
Four Ways to Understand the Earth's Age
Cartoon children compare the earth's age to timescales that we understand:a calendar year, the thickness of a book, the human lifespan. This smart film clip is definitely worth adding to your geologic timescale lesson! If you subscribe...
4 mins 6th - 12th Science CCSS: Adaptable