Gravity and Its Effect on Planetary Orbits

Examine the phenomenon of El Niño and its impact on the environment. Using social studies, language arts, and science, learners will develop a news story on past occurrences of El Nino, its global effect on weather patterns, predictions...

Students investigate the greenhouse effect and examine the potential effects of climate change in the Arctic. They construct a mini-greenhouse and test its effect on temperature, analyze historical climate statistics, and conduct an...

Why is the sun round? Examine this question, and others, with your pupils while teaching them how to live in a more earth-friendly environment. Pupils explore Sun composition and discuss how solar wind, sunspots, and solar energy affects...

Explore our world from within as you lead young scientists on a thrilling adventure. Pupils examine the location of plate boundaries to determine earthquake and volcano distribution around the globe and explore the cause of hot spots in...

In 1842, Christian Doppler proposed a theory relating the change of wavelengths based on motion. Young scholars observe the Doppler Effect on a small scale in a ball, on a larger scale from a car, and on the largest scale studying the...

As the title implies, here is a collection of typical photoelectric effect problems that physics learners need to be able to solve. They determine the amount of energy of a photon, the photons produced per second, the frequency required...

Discover the transition from circular orbit theories to elliptical orbits. An episode of a video series on astronomy models the different elliptical shapes of the orbits of the planets in the solar systems. Using string, the presenter...

Orbitals are the focus of this video. Sal introduces Neils Bohr, who is the scientist who came up with the theory behind orbitals. Students view graphics which portray the orbitals, their energy shells, and how they correspond to the...

A more detailed description and definition of orbitals, and the role they play in the atomic world are the focus of this video. The "P Orbitals" are described by taking a close look at the carbon element's properties. The periodic table...

The greenhouse effect warms up earth enough so it can support life, but if it heats up too much, life won't be able to survive. An interactive presentation covers the greenhouse effect, the carbon cycle, climate forcing, and climate...