For all the phenomena of The Mechanical Universe, Isaac Newton laid down the laws. A refinement on Galileo's law of inertia, Newton's first law states that every body remains at rest or continues in uniform motion unless an unbalanced force acts on it. His second law, the most profound statement in classical mechanics, relates the causes to the changes of motion in eve
How to Make a Water Rocket
A step-by-step guide that shows how to make a water rocket. They can be made in about ten minutes, but only under close supervision. A good way to explain action-reaction.
The Science of Scent
What's the science behind a sublime perfume? With charm and precision, biophysicist Luca Turin explains the molecular makeup -- and the art -- of a scent. Luca exposes the audience to a fragrance that's been split up into parts and explains that there are over 400 molecules from the frangrance floating through the air. This video could also be used for an advanced lesson in chemistry. The video is somewhat advanced, but intriguing. Run time 15:56.
Obesity, Diabetes, and Energy Metabolism - Research Channel
National Institutes of Health program reviews current information on obesity and related complications. This is a video of a lecture presented by Dr. Marc Reitman, chief of the molecular biology and gene regulation section of the National Institute of Diabetes & Digestive & Kidney disease. A little dry, but detailed information is presented. 45:31 min.
Chemical Reaction Egg Shell Demonstration
Join Nanna as she demonstrated how vinegar can create a chemical reaction that will dissolve the shell of a raw egg. She uses two glasses, vinegar, water, and two raw eggs to complete her experiment and explains how the acidic acid in the vinegar reacts with the egg shell. The Kids Know It movies bring your student on a fun and interactive journey through the world around us. Run time 06:47
Stoichiometry Example, Problem 1
This video offers instruction from Sal Khan on figuring grams of reactants and product produced from reaction of phosphorous and chlorine. Mr. Khan uses computer software for demonstration.
Empirical and Molecular Formulas from Stoichiometry
Empirical and Molecular Formulas from Stoichiometry
This video offers instruction from Sal Khan. This is another stoichiometry example. Mr. Khan uses computer software for demonstration. The screen is a little 'busy' so the viewer may want to open the screen to 'full screen' to see all more clearly.
How to Make Sidewalk Chalk
The video gives step by step directions on how to make sidewalk chalk using plaster of paris, water, and powdered tempera paint. The instructor also explains the science behind the craft. Most kids think of solids turning to liquids and liquids to solids because of a temperature change. In this experiment, a chemical reaction causes the mixture to change from a liquid to a solid. As the chemical reaction occurs it also gives off heat which is called an exothermic reaction. This instructor
Introduction to Reaction Mechanisms
In this video, Sal Khan offers an introduction to reaction Mechanisms. Mr. Khan uses the Paint Program (with different colors) to illustrate his points. Sal Khan is the recipient of the 2009 Microsoft Tech Award in Education. Please open the screen to 'full view' to see the small writing on a black screen.
Molecular and Empirical Forumlas from Percent Composition
The instructor discusses a word problem concerning Molecular and Emperical Forumlas from Percent Composition. This is Example 2.9 from the Kotz Chemistry book. Mr. Khan uses computer software for demonstration. The screen is a little 'busy' so the viewer may want to open the screen to 'full screen' to see all more clearly. (10:34)
Paul Rothemund folds DNA into shapes and patterns. Which is a simple enough thing to say, but the process he has developed has vast implications for computing and manufacturing. Rothemund compares genetic programs to computer programs. He uses many examples to explain the molecular programs underlying biology. DNA origami is being used to do complex molecular computations.
Molecular Genetics: The Protein vs. DNA Debate
The protein vs. dna debate - Professor George Wolfe discusses molecular genetics and the protein vs. DNA debate in this video from Thinkwell's online Biology series. Run time 09:23.
Introduction to Stoichiometry
Instructor introduces Stoichiometry, where chemists study the relationship between reactants and products in a balanced chemical reaction. Instructor uses a black screen to write with his cursor and uses different colors to highlight points. According to instructor, this is high school chemistry.
Formation of a Star Cluster
Video is from UK Astrophysical Fluids Facility. An animated scenario about the formation of stars in a cluster and the evolution of a cluster itself. A star that is being formed makes a chain reaction and other stars are born. Video is of great quality. There is no talking, but music plays in the background. This video is appropriate for fourth grade through high school.
Owl Pellet Hands-On Activity
Students in Egypt discover predator/prey relationships and population dynamics as they dissect owl pellets. An English translator repeats to the audience the teacher's instructions. She clearly explains the step-by-step process as the class works outdoors, on the ground. Required tools are shown and named before they are used. Students break apart owl pellets, take away the fur, and find bones of animals the owl has eaten. Bones are then compared to a chart showing the bones of a
Twinkle,Twinkle, Little Star - Simple Animation
The popular nursery rhyme shown in a colorful animation with little movement. The animation simply shows a little boy's happy reaction when he sees the stars in the sky.
What Is Cellular Respiration?
Cellular respiration is the chemical reaction that helps a person
to turn the sugar in food into energy. Find out how cellular respiration
is related to photosynthesis with information from a science teacher in
Learn about the Maillard Reaction with Cooking
Believe it or not, steak, coffee beans, caramel, and toast have something in common. It's called The Maillard Reaction and it is the reason that things get browned when they are heated. It is a chemical reaction of sugars with amino acids. Dr. Kiki helps explain this process. Run time 03:38
Where Does Nuclear Energy Come From?
Nuclear energy comes from a chain reaction involving uranium,
plutonium and fissile where neutrons collide and produce millions of
small reactions that combine in less than a second. Discover the origin of nuclear energy with interesting information from a science
teacher in this video.
Demo of Action and Reaction
See action and reaction demonstrated with a tug of war. The force of the tug of war is measured with scales. This video is a demonstration explained by a teacher, Paul Hewitt, in front of the classroom. This is a brief clip from the DVD series "Conceptual Physics." Run time 01:35.