Bozeman Science
The Origin of Life - Scientific Evidence
Guess where the oldest rocks on Earth are found? And what do these rocks reveal about the age of the earth? Viewers of this short video analyze the age of the earth and explore the origin of life through geologic, chemical, and...
PBS
How Two Microbes Changed History
Where would we be without bacteria? As it turns out, we owe them everything! Introduce young biologists to endosymbiotic theory using an amazing video from an extensive biology playlist. Scholars discover the bacteria that may be...
Howard Hughes Medical Institute
The Molecular Cascade in Bacterial Quorum Sensing
Antibiotics kill bacterial growth, but widespread use results in antibiotic resistance. Researchers wonder if quorum sensing might allow us to treat bacteria without the resistance. View an animation of quorum sensing as it regulates...
Socratica
Chemistry: Molar Mass
Molar mass, gram molecular mass, and gram formula mass essentially mean the same thing. The brief video, part of the Socratica "Chemistry Lessons" playlist, explains how to solve these problems. It walks through the required tools, the...
Howard Hughes Medical Institute
Chargaff's Ratio
How do we know the structure of DNA? Learn about Chargaff's rule and how scientists first discovered the structure of DNA. Using an informative video, young scientists identify how the arrangement of complementary nitrogen bases affects...
Socratica
Chemistry: Ionic Bonds vs Covalent Bonds (Which is Stronger?)
Both ionic and covalent bonds present as strong bonds, but which is stronger? Socratica presents a video from its chemistry playlist that attempts to answer this question. It addresses how strength is measured and the range of strengths...
Howard Hughes Medical Institute
Cloning an Army of T Cells for Immune Defense
How do bodies fight infections and illnesses? An animation of the way T cells clone to fight an infection provides many details. The resource also provides an excellent written introduction and ideas for how to ensure pupils understand...
Socratica
Chemistry: What Is a Metal? (Metallic Bonds)
Metals offer unique properties thanks to the structure of their valence electrons. The Socratica chemistry playlist includes this video explaining what a metal is and the properties of metals. It focuses on their structures, features,...
Socratica
Empirical Formula
With empirical formulas, it's all about keeping it simple! Introduce the concept of empirical formula to your chemistry scholars through a detailed video from Socratica's Chemistry Lessons series. The resource uses visual cues,...
Socratica
Chemistry: What Is an Ionic Bond?
Teach your class all they want to know about ionic bonds. An engaging video, part of the Socratica "Chemistry Lessons" playlist, explains what ionic bonds are and how they form. It describes multiple examples of ionic bonds and...
Socratica
Chemistry: What Is a Covalent Bond? (Polar and Nonpolar)
When it comes to covalent bonding, sharing is caring! As part of the Socratica chemistry playlist, a useful video explains the definition of covalent bonding. Then, it works through examples of single bonding, double bonding, polar...
Socratica
Chemistry: Stoichiometry Part 2—Mass to Mass Conversions
The term stoichiometry derives from the Greek words stoicheion meaning element and metron meaning measure. The second Socratica video in a two-part series within a larger chemistry playlist introduces more complex stoichiometry problems....
Socratica
Chemistry: Balancing Chemical Equations—Algebraic Method
If you love algebra, then you're gonna love this balancing method! Introduce young chemists to the algebraic method of balancing chemical equations using a video from an informative chemistry playlist. The narrator works five sample...
Socratica
Chemistry: Introduction to Unit Conversion and Dimensional Analysis (Part 2)
If you know how much carbon dioxide you produce in one breath, can you figure out how much you produce in one month? Socratica helps solve multi-step unit conversion problems. The video walks through how to set up these challenges and...
Socratica
Chemistry: Average Atomic Mass (AMU, Daltons, etc.)
Scientists created a new measurement, the atomic mass unit, which is defined as carbon 12 = 12amu. So why isn't carbon listed as having exactly 12 amu on the periodic table? An installment from the Socratica chemistry playlist answers...
Socratica
Chemistry: Percent Composition
How much oxygen is in water? Is it the same as the chemical formula? Learners observe the differences between a substance's formula and its percent composition with a video from Socratica's Chemistry Lessons series. The narrator...