SciShow
Inbreeding with Yourself
*At the time this video was made, it had been reported that Charlotte the round ray was pregnant. However, new information has come out that she was never pregnant with parthenotes, and in fact had a reproductive disorder, which is a...
Crash Course
Speciation: Of Ligers & Men - Crash Course Biology
Hank explains speciation - the evolutionary process by which new biological species arise - in terms of finches, ligers, mules, and dogs.
Nature League
Exploring Evolution and Speciation | Compilation
Brit looks back on our sixth month on Nature League, when we explored the theme of evolution and speciation. Get your Nature League pin here!
Nature League
Preserving Montana's State Fish - Field Trip
In this Nature League Field Trip, Brit joins scientists in the Flathead River system to explore the consequences of genetic introgression between westslope cutthroat trout and rainbow trout.
Professor Dave Explains
Limitations of VSEPR Theory
We've learned about VSEPR theory, and we know how to use it to predict molecular geometry for a variety of organic molecules. But in fact, there are situations where predictions made with VSEPR theory do not line up with experimental...
Visual Learning Systems
Genetics in Our Lives: Selective Breeding
This exciting program takes a glimpse at some of the amazing advances in modern genetics. Starting with the discovery of DNA, students will be exposed to advances such as the creation of recombinant DNA, vaccines, the human genome...
Professor Dave Explains
Practice Problem: VSEPR Theory and Molecular Geometry
What's with all these shapes? Let's practice assigning hybridization, electron-domain geometry, and molecular geometry. Octahedral! Tetrahedral! Linear! Pyramids and see-saws and what not! Chemistry is fun, isn't it?
Professor Dave Explains
IIT/JEE Chemistry Practice #20: Hybridization
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Weird History
Did Homosapiens Mate With Neanderthals?
Neanderthals coexisted with modern humans for tens of thousands of years, and the two groups certainly met. Evidence shows that Homo sapiens not only procreated with Neanderthals - they also slew and ate them.
Professor Dave Explains
IIT/JEE Chemistry Practice #17: Molecular Geometry
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Professor Dave Explains
Visualizing Molecular Geometry With 3D Software
We've already learned about VSEPR theory, and how to use it to predict the shapes of various molecules. But we didn't cover all of the molecular geometries for certain hybridizations, and we didn't talk about bond angles, so let's do...
Ancient Lights Media
Conventional Plant Breeding
This clip examines some of the traditional methods of plant breeding.
Professor Dave Explains
VSEPR Theory and Molecular Geometry
Did you know that geometry was invented by molecules? It's true! Until the first stars went supernova and littered all the elements across the cosmos, everything was simply spheres, from protons to stars. But then, under cooler planetary...
Teacher's Pet
Probabilities, Dihybrid and Test Crosses
Epistasis originated from genetics but now applies to biochemistry, computational biology, and evolutionary biology. The video introduces epistasis as it relates to genetics. It also discusses dihybrid crosses, test crosses, polygenic...
TED-Ed
How Corn Conquered the World
Corn is amazing! A short video traces the development of the most-grown plant on the globe, from its beginnings in Mesoamerica to its many uses beyond as a food stable.
Nature League
Preserving Montana's State Fish - Field Trip
Many people know in cases with a lot of in-breeding, the species becomes weak and less likely to survive long term. Now learn about how out-breeding also leads to the same result. The second of five videos on Evolution and Speciation...
Teacher's Pet
Monohybrid Cross
Heterozygoes appear just a-llele uneven. The video explains how to solve monohybrid crosses using Punnett squares. It offers many practice problems determining the allele and percentages.
Crash Course
Orbitals
What do molecules look like anyway? A video explores the orbitals of molecules that determine their shape, including S and p orbitals and their hybridization. It also introduces sigma and pi bonds so learners can fully grasp the...
Ricochet Science
Dihybrid Genetic Cross
Do you need to pass along the concept of in a short amount of time? Learners view a short video segment that describes, in detail, the process and results of a dihybrid genetic cross through Punnett squares. They then conclude the...
Ricochet Science
Monohybrid Genetic Cross
How can you teach your class about monohybrid genetics in a simple yet timely manner? Pupils view the short video segment, which thoroughly describes a genetic cross featuring one trait, and learn about the underlying principles of...
Ricochet Science
How Punnett Squares Work
How did Mendelian genetics change the way we view science? Facilitate a lecture as learners view a short video segment that describes the correct use of a Punnett square. They follow the video by completing practice problems to further...
Khan Academy
Species
How are living organisms grouped? In this eight-minute video clip, the system of grouping them according to similarities and relationships is broken down straightforwardly. Sal explains the definition of species and how they must be able...
Khan Academy
Khan Academy: Hybridization: Pi Bonds and Sp2 Hybridized Orbitals
Obtain a bigger understanding of hybridization through Pi bonds and sp2 Hybridized Orbitals.