This activity is a guided demonstration where students create light up quiz boards to demonstrate electricity vocabulary.

Interactive Lecture Demonstrations to illustrate the nature of torques and on the balancing of torques in static equilibrium.

This activity is designed to provide qualitative understanding of the Work-Energy Theorem. Students are expected to have read introductory material regarding the theorem, and are tested on this with a short online quiz prior to class. After a brief discussion a "warm-up" demonstration is conducted with student participation. A question is then posed regarding the height a "Hopper Popper" will reach if launched from a thumb instead of a hard flat surface. After initial responses are presented, discussion groups are formed to achieve consensus and provide justification of conclusions. This is followed by a confirming demonstration with surprising results.

This activity is an interactive demonstration of the concept of density with a guided inquiry component.

Open tube resonators of nearly identical length produce sound waves with frequencies very close together. The difference between the two frequenciesy is the beat note frequency heard when two resonators (musical intruments)are slightly out-of-tune.

This activity is a guided exploration of how static electricity works and how it relates to lightning.

This activity is a classroom investigation where student observe several properties of water; adhesion and cohesion. They will transfer this knowledge to predicting other materials that will have adhesion with water molecules.

This demonstration book is meant as an explanation and working example of the possibilities of making an online open textbook with the Jupyter books software. Jupyter books are made for the web. They incorporate many of the features we expect from modern websites, such as adaptive layout (readable on phones, tablets, and large computer screens), internal and external referencing, and adaptable formatting (separation of content and layout).
Besides some information on how to work with MarkDown, this book shows examples of different interactive elements, like graphs with sliders, applets, 3D interactive figures, embedded websites and a quiz.

Through two classroom demos, students are introduced to the basic properties of lasers through various mediums. In the Making an Electric Pickle demonstration, students see how cellular tissue is able to conduct electricity, and how this is related to various soaking solutions. In the Red/Green Lasers through Different Mediums demonstration, students see the properties of lasers, especially diffraction, in various mediums. Follow-up lecture material introduces students to the mechanisms by which lasers function and relates these functions to the properties of light. In the associated activity, student teams research specific laser types and present their findings to the class.

This activity is a guided inquiry or demonstration where students investigate elastic potential energy and gravitational potential energy and interpret their findings as related to Newton's Laws of motion.

An ILD to help demonstrate the Law of Diminishing Marginal Returns using an experiment.

A dynamically simplified solar system is constructed from online data to explore the real solar system on many different scales.

The realistically scaled solar system is surprising because nothing is visible due to the presence of many different scales. That is why it is usually rescaled in animations or illustrations. This is nice but gives us a wrong sense of distances and sizes. This Demonstration is intended to show the solar system's different scales in their full glory.

Since it is hardly possible to see anything when the real scales are used, controls have been added to modify the sizes of the celestial bodies.

This activity is a active learning activity where students will observe and represent the layers of the Earth from the core to the lithosphere.

This activity is based on inquiry, guided discovery, observation and discussion to help students learn the objectives in learning more about a fish, labeling its body part and learning about its life cycle.

A magical demonstration where a Pyrex tube vanishes in a beaker of mineral oil. Useful demonstration to introduce to concept of refraction (and/or partial reflection).

This is an interactive lecture where students answer questions about demonstrations shown in several movie files. They learn to connect what they have learned about molecules, phases of matter, silicate crystal structures, and igneous rock classification with magma viscosity, and to connect magma viscosity with volcano explosiveness and morphology.

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This is an interactive lecture where students answer questions about demonstrations shown in several movie files. They learn to connect what they have learned about molecules, phases of matter, silicate crystal structures, and igneous rock classification with magma viscosity, and to connect magma viscosity with volcano explosiveness and morphology.

This Chemistry experiment investigates physical changes, solutions, supersaturated solutions, and states of matter.

A one page assignment that uses online tutorials to give students a first exposure to the components of a cell and membrane.

Students predict then calculate and graph profit-maximizing the price for an isolated, desert monopoly gas station.