Does light affect molecules or does it go right through them? The simulation explores four different types of light: microwave, infrared, visible, and ultraviolet. Scholars alter the energy level of each as it is aimed at seven different...

Why is there more daylight in June than in December if you live above the equator? How does the angle of sunlight shift throughout the year? Answer these questions and more with an interactive article about the sun, its path through the...

Go study the universe. Pupils learn seven aspects about astronomy and astronomers. They begin to learn about constellations; distance and motion between objects; gravity; the electromagnetic spectrum; dark matter and energy; and teams of...

Scientists detected exoplanets by measuring how the brightness of stars changed over time. Young astronomers interpret and analyze the same data that led to exoplanet discoveries. They learn to apply light curve graphs and connect the...

Can you time the speed of your car perfectly so you only hit green lights? The challenge in the simulation is to alter the timing of the lights or the speed of the car in order to do just that. Scholars learn about angular speed as they...

In this electrical learning exercise, students answer a series of 27 open-ended questions pertaining to DC circuits by analyzing electrical schematics. This learning exercise is printable and there are on-line answers to the questions.

In this online interactive history quiz worksheet, students respond to 10 short answer and essay questions about the life and accomplishments of Isaac Newton.

For this online interactive vocabulary skills worksheet, students match the 10 vocabulary terms in the word bank to the appropriate definitions. Students may submit their answers to be scored.

In this earthquake exploration worksheet, students complete 3 prior knowledge questions, then use "Energy Conversions Gizmo" to conduct several activities, completing short answer questions when finished.

A large collection of online activities for exploring how our eyes perceive real and apparent motion.

This terrific interactive site from the National Park Service describes the different buildings on Thomas Edison's West Orange, New Jersey's laboratory facility. After exploring the buildings, follow Edison's invention and application of...

This site, in German, offers numerous apps that illustrate common physics principles. Apps are organized into categories: mechanics, oscillations and waves, electrodynamics, optics, thermodynamics, the theory of relativity, physics of...

Manipulate variables in order to observe the effects of relative motion on events such as an explosion and the time at which its light signal reaches a destination.

Instructions that take you through an Einstein-like thought experiment by having you imagine and record what you see when stationary and when moving at the speed of light.

A model for examining the simultaneity of two events where the relative velocity and the wave source, either light or sound, can be manipulated.

Conduct virtual experiments with water, sound, and light waves to determine the sine wave and patterns created in each.

This interactive activity from NOVA Online lets you spin a spiral galaxy, including our own Milky Way. It demonstrates that what you can learn from visible light observations of a galaxy is largely determined by the angle from which you...