Young scientists know it is hotter along the equator, but why is it also rainier? Through the process of completing two experiments and a worksheet, scholars discover the answer is the intertropical convergence zone. First, they...

How do we know what layers are inside of the earth since we can't dig that deep? The first in a series of five lessons introduces the concept of sampling and testing a hypothesis about what is inside a sphere. Using two spheres that look...

The three types of rock aren't classic, punk, and hard. The chapter covers everything scholars need to know about rocks. Pupils compare rocks, learn about their formation, see how rocks change, and follow every step of the rock cycle....

Geology rocks — literally! A geology chapter offers eleven activities at four different levels. Scholars enjoy completing hands-on experiments before applying critical thinking skills following a share, process, generalize, apply, and...

How can you effectively provide detailed concepts of water properties to your high school class in a way they find exciting and challenging at the same time? By letting them play, of course! Through a variety of experiments, pupils...

Discover whether sound travels in space and other fascinating science facts. Scientists explore energy transfer by longitudinal waves and learn about compression, rarefaction, amplitude, and wavelength while watching an animated video....

 Introduce classes to the idea of waves with a short video clip. An interesting presentation gives a quick but thorough overview of the different types of waves and where people encounter them.

No need to wave the white flag. Use an animation to demonstrate the motion of seismic waves instead. A short animation shows the motion of longitudinal and transverse waves. Pupils also learn how the movement displaces the earth.

One important skill in analyzing scientific evidence is identifying facts versus opinions. Scholars identify pieces of evidence from the film The Day the Mesozoic Died and then discuss this evidence in small groups at the end of each act...

What do people really know about the moon? Learn about three unsolved moon mysteries: the moon's past magnetic field, lunar sunrises, and what's really inside the moon's craters. An engaging video from the SciShow Space series connects...

How do scientists know the difference between a meteorite from space and a regular rock from the earth? Scholars read a passage and answer comprehension questions about the creation of the solar system. They extrapolate the main ideas to...

The subduction model: helping learners understand how continental drift is possible. An animation demonstration illustrates the process of subduction through an analysis of the earth's layers. The instructor narrates the process as the...

Convection currents do more than just bake a cake. A quick lesson demonstrates the convection currents of the earth and how they contribute to continental drift. An animation illustrates the movement of the currents and demonstrates how...

The plates of the earth may be shifting right under your feet! Learn the causes and consequence of this shifting through an informative a video lesson. Scholars explore the effects of the movement on a local, global, and even planetary...

Water that leaves the oceans must eventually return. The animations in the final lesson of the four-part NASA series show the complex path water can take across landforms before returning to the ocean. Approximately one-third of the...

The oceans contribute 37 trillion tons of water to land masses in the form of rain and snow. The third in a four-part series from NASA show satellite animations highlighting the precipitation on Earth. The videos show the movement of the...

How does water vapor move from point A to point B? The second installment in a series of four on the water cycle allows scholars to analyze satellite images to answer this question. The satellite animations show how evaporation and wind...

There is more to the water cycle than simply rain and evaporation! The first installment in a four-part series explores the solar heating of the ocean through three satellite animations. The animations offer different views of the earth...

The water we use today is the same water our ancient ancestors used. A comprehensive video lesson explains this concept and many others as it explores the earth's materials and systems. From the geosphere to the atmosphere, the narrator...

Take the mystery away from earthquakes. A video lesson explains the theory of plate tectonics and how it relates to earthquakes, volcanoes, mountains, and oceanic trenches. The instructor gives specific feedback on the progression of the...

Scientific models help explain ideas and concepts to non-experts. The online activity covers conceptual, mathematical, and physical models. Through four multiple-choice questions and three discussion questions, scholars gain a deeper...