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Uncovering the Structure of DNA
Learn about the Hershey Chase experiment, Rosalind Franklin’s X-ray diffraction and the formation of nucleosomes in this video! (Correlates with parts of IB Biology HL Topic 7.1)
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Transcription and Gene Expression
Learn about the factors effecting gene expression and the control of gene expression during and after transcription in this video! (Correlates with IB Biology AHL topic 7.2)
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Matter
Learn about matter, substances, elements, compounds, mixtures, phases of matter, and separation techniques in this video. Intro Matter Substances Physical property Physical change Mixtures Separating mixtures Elements Compounds Flow chart
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Population Dynamics
Learn how to calculate growth rate, interpret growth diagrams, survivorship curves, population pyramids (age structures), exponential and logistic growth in this video!
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Population Genetics
Learn about the very basics of population genetics (microevolution) in this video!
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Types of Natural Selection
Learn about the types of natural selection (directional, stabilizing and disruptive) in this video!
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Phase Diagrams
Learn how to interpret a phase diagram including the triple point and places of sublimation!
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Strength of Acids and Bases
Learn about how the strength of acids and bases are determined in this video! transcript ____________________ not all acids and bases are the same. Some are stronger some are weaker. We can figure out the strength of an acid using this...
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Hydrogen Ions and Acidity
Learn about the basis of the pH scale and how to do some pH and pOH calculations in this video! Transcript _____________________ When water gains a hydrogen ion, it becomes hydronium, H3O+. When water loses a hydrogen it becomes...
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Acid-Base Theories
Learn about Arrhenius and Broasted-Lowry acid-base theory, the amphoteric nature of water and some properties of acids and bases in this video! transcript _______________________________________ every day you encounter acids and bases....
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Molarity
Learn about concentration, solutes, solvents, and molarity in this video! Transcript ________________ Have you ever noticed that Kool-aid at a summer camp tastes weaker than the kool-aid you might mix at home? Camps have a tendency to...
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Reversible Reactions
Learn about reversible reactions in dynamic equilibrium in this video!
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Le Châtelier
Learn about Le Châtelier’s principle and how to apply it to reversible reactions in this video!
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Allele Frequencies
Learn about the simple calculation of allele frequencies in a gene pool, hardy-weinberg assumptions and the difference between acclimation and adaptation in this video!
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Salts in Solution
Learn about salts in solution, equivalence points other than 7 and buffers in this video! transcript _______________ Salts contain an anion from an acid and a cation from a base Acids and bases mix to produce salts, but not always a...
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Species Interactions
Learn about predator-prey relationships, interspecific competition, infraspecific competition, competitive exclusion principle, resource partitioning and symbiosis (mutualism, commensalism and parasitism) in this video!
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Disruption of Genetic Equilibrium
Learn about the disruption of Hardy-Weinburg equilibrium in this video! Includes information about mutation, migration, gene flow, genetic drift, small populations, sexual selection and artificial selection.
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Succession
Learn about the types of succession (primary and secondary) and the process of succession in this video!
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The Nucleus
In this video you’ll learn about the parts of the nucleus, how it stays together and how to write in isotope notation.
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History of Evolutionary Thought
Learn about Jean Baptiste de Lamarck, Darwin and Wallace in this video!
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Evidence for Evolution
Learn about the key pieces of evidence for evolution: fossils, anatomical evidence, embryology and biochemical evidence
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Solubility Equilibrium
Learn about solubility, solubility product constants, common ion effect and predicting if a precipitate will form in this video!