In this unit, students will discover the period of time of one oscillation, the frequency of oscillation, the object displacement, its velocity, and its acceleration. They will also discover how to apply the principles of conservation of...

In this unit students discover the meaning and some applications of electric potential, commonly known as voltage, and how it powers some simple circuits.

In this interactive module you will be introduced to a unit on fluid dynamics. Learn how an object's density relates to its mass and volume by completing various activities and interactives.

In this interactive unit on thermodynamics, you'll learn why heat flows the way it does and how that flow of thermal energy can be put to good use in your daily life.

In this unit students take a deeper look into charges beyond the simplified 'opposites attract." Students learn to calculate those attractive and repulsive forces and to show how invisible fields are responsible for them.

In this interactive unit students will see how magnets work and how they are used in some of the most useful and common devices today.

Through labs, readings, videos, and discussions, students learn about the concepts of Electromagnetic Induction.

In this interactive lesson about electromagnetic waves students will explore what they can see, what they can't, and what they know about the wave nature of this thing called "light."

This interactive unit will help students to understand the basics of geometric optics. Learn what happens when light strikes the boundary between two media as well as the difference between a real and virtual image? Also explore the law...

In this interactive tutorial students explore special relativity and quantum mechanics. Learn basic tenets of the theory of special relativity and the relationship between mass and energy. Also discover the evidence for the particle...

This interactive unit will take students up close and personal with the nuclei of atoms as they discover some of their more intimate process. These will include radioactive decay, nuclear fission, and nuclear fusion.

In this interactive tutorial students will learn about electric current, resistance and current density. Learn how current density relates to electric field strength and how resistance produces heat.

In this interactive module students will explore what different ancient cultures believe was an explanation of the stars and planets. They will look at how the work of Nicolas Copernicus revolutionize the world of astronomy and learn how...

In this interactive tutorial students will learn about a few of the instruments used to further our knowledge of the Universe around us.

In this interactive tutorial students will learn what causes the seasons, diurnal cycles and how the constellations move through the sky. Learn we are able to see other planets and how astronomical events affected life on the Earth.

In this interactive tutorial students will explore what it is like on the Moon. Learn why the shape of the Moon seem to change and also about lunar eclipses. Discover why the tide changes twice a day and explore how the cycle of the Moon...

This interactive tutorial will take students on a tour of our solar system. Students begin near the Sun with the really hot planets of Mercury and Venus. They will learn about Mars, probably the first planet that humans will visit. Next...

In this interactive module students will explore the life cycle of stars and how they produce energy.

In this interactive tutorial students will explore galaxies. Learn what the Milky Way Galaxy is like, how various galaxies are grouped into clusters and superclusters and why those particular galaxies clump together.

This interactive module will help students understand cosmology. Learn about the standard cosmological model and explore if life is possible in other places besides the Earth.

In this lesson, you will learn about how the Earth formed as well as the composition and structural layers of the Earth's interior.

In this interactive lesson you will learn about the theory of plate tectonics and the three types of plate boundaries that are responsible for Earth's geologic features.

In this amazingly comprehensive tutorial you will learn about the geological and environmental changes that occurred during the geologic time scale.

In this amazingly comprehensive interactive tutorial you will learn about the characteristics and features of the different biomes on our planet.