We use motion detectors and a bowling ball to find relationships velocity, mass, and energy.

This is a hands-on activity to assess the students understanding of peptide and disulfide bonds formed during protein synthesis. Students demonstrate the process of dehydration synthesis by combining amino acids through peptide bonds creating molecules of water, and one protein amino acid strand. It can also be used to assess students understanding of the process of translation.

By using the discrepant event of dropping a burning candle in a jar, students will predict, experiment, and discuss why the candle goes out as soon as it is caught.

This activity examines the characteristics of light. Students demonstrate that light travels straight and does not bend around an object.

This activity provides a demonstration and lab exploration of one of the main "building blocks" of the periodic table of elements: chlorine. During the lab, students compare physical and chemical properties of chlorine compounds.

Students observe a burning candle and the byproducts given off through the burning process. This observation leads to a discussion to the effects of air pollution on our lives.

This active demonstration investigates the law of conservation of momentum using a person on rollerblades and a thrown medicine ball.

This activity describes the construction and use of a pneumatic cannon and free falling target used to teach the concepts of projectile motion in introductory physics.

This demonstration uses sulfuric acid and crushed copper ore (malachite) to produce a solution of copper sulfate and carbonic acid in a beaker. When a freshly sanded nail is dropped into the copper sulfate solution, native copper precipitates onto the nail. The process is similar to that of heap leaching at a copper mine. The entire set-up can be placed on a wheeled cart and completed in less than 15 minutes in class. Students enjoy seeing the copper crystals form on the nail, and the experiment provides the basis for many avenues of discussion, from chemical reactions and mineral formation to problems with mine tailings and acid mine drainage.

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This activity gives a visual representation of how we are able to see the different layers of metamorphic rocks.

This activity gives a visual representation of how we are able to observe many colors in a sunrise or sunset.

This demonstration uses melted phenyl salicylate to show how crystals nucleate and grow as the temperature of the liquid melt decreases.

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An elementary review activity for chemistry vocabulary, tools, and concepts used with the classroom science curriculum.

A demonstration (with full class participation) to illustrate radioactive decay by flipping coins. Shows students visually the concepts of exponential decay, half-life and randomness. Works best in large classes -- the more people, the better.

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

In this interactive demonstration students will make observations of diffusion of a semi permeable membrane and be able to compare these observations to the functions of a cell membrane.

To reinforce students' understanding of the human digestion process, the functions of several stomach and small intestine fluids are analyzed, and the concept of simulation is introduced through a short, introductory demonstration of how these fluids work. Students learn what simulation means and how it relates to the engineering process, particularly in biomedical engineering. The teacher demo requires vinegar, baking soda, water and aspirin.

This is an indoor and outdoor activity where students understand the distance the earth is from the sun. The students understand that the earth rotates on it's axis once in a 24 hour period thus providing us with day and night.

This demonstration uses an "earthquake machine" constructed from bricks, sand paper, and a winch, to simulate the buildup of elastic strain energy prior to a seismic event and the release of that energy during an earthquake.

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

Interactive Lecture Demonstration to illustrate that impulses are larger in elastic collisions than in inelastic collisions if other factors are the same.

This simple demonstration shows the interaction between electricity and magnetism. Two coils of wire are held close to each other, but not touching. One is attached to a music source, such as a small radio or iPod, and the other is attached to an external speaker. Students can hear the music through the speaker even though there is no direct connection.