SSAC Physical Volcanology module. Students build a spreadsheet for an iterative calculation to find volume of bubbles and hence porosity, permeability and gas escape as a function of depth.

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This video segment adapted from Shedding Light on Science illustrates how light changes speed, and thus direction, in a process known as refraction.

In this interactive activity from NOVA, discover how centripetal force can affect you when riding in a car or flying at high speeds in a fighter jet.

Students will statistically analyze data gathered in reference to the Abraham Lincoln penny.

An Introduction to Soil Physical Properties and Processes

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This poster was developed to commemorate the 25th anniversary of the Voyager 1 and 2 launch. The learning objectives of the activity Voyager 1 and 2: Where Are You is to help students appreciate the great distances between the planets and their comparable sizes, view the solar system in three dimensions in a useful scale, and visualize the paths of the Voyager spacecraft and their distances and positions.

Use a Slinky to show:P and S waves, Wave reflection, and Standing waves in interactive lecture demonstration.

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This activity is a guided inquiry on surface tension where students design their own lab experiment based on a focus question, make predictions, collect data and compare the outcome with their predictions.

This activity is an inquiry lesson where students learn how to accurately read a thermometer and then set up an investigation to compare the temperatures of different materials or locations.

SSAC Physical Volcanology module. Students build a spreadsheet to examine how magma viscosity varies with temperature, fraction of crystals, and water content using the non-Arrhenian VFT model.

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Students experiment and hypothesize about surface tension and cohesion, using water, ground black pepper, liquid soap, and other household products.

This activity is a guided inquiry investigation where students will propose a question on what makes an electromagnet stronger. They will conduct a controlled experiment to answer their own question.

The purpose of this exercise is to learn how to think about gravity, learn about scientific methodology, and transition from the Aristotelian to Newtonian to Einsteinian understanding of gravity.

Here’s a new “spin” on an old toy. In this modern adaptation of a classic toy—the spool racer—a plastic water bottle is propelled by energy stored in a wound-up rubber band.

Linear velocity from the radius and angular velocity for two pumpkin catapults with different arm lengths.

Work needed to compress a spring is the same as the potential energy stored in the compressed spring. Created by Sal Khan.

A conservative force exists when the work done by that force on an object is independent of the object's path. Instead, the work done by a conservative force depends only on the end points of the motion. An example of a conservative force is gravity. Created by David SantoPietro.

David explains what it means for a collision to be elastic or inelastic. Created by David SantoPietro.

David explains how and why standing waves occur, and well as how to determine the wavelengths for a standing wave on a string. Created by David SantoPietro.

Full Curriculum, Newtonian Mechanics whereby fundamental concepts (momentum, energy, force, motion) are introduced on the first day and developed in parallel. Access entire curriculum: comprehensive lecture videos with questions, textbook (calculus based, algebra based, and conceptual), exams, syllabus, past student evaluations.