This interactive activity from the NOVA Web site challenges you to think like Einstein and understand how time travel might be possible.
This video from NASA explains the process by which gamma-ray flashes associated with storms produce matter/antimatter particle pairs.
This illustrated essay from the NOVA Web site answers questions about irregularities in the tides.
This informational text introduces students to the geographic uniqueness of the North and South Poles. The text is written at a grade four through grade five reading level. This is a PDF containing the informational text and a glossary.
Investigate how torque causes an object to rotate. Discover the relationships between angular acceleration, moment of inertia, angular momentum and torque.
Investigate how torque causes an object to rotate. Discover the relationships between angular acceleration, moment of inertia, angular momentum and torque.
In this activity, a lightbulb is placed in front of a concave mirror. The actual lightbulb is not visible to the viewer, but the viewer can see the mirror image of the lightbulb formed in space. When the viewer tries to touch the lightbulb, they are attempting to touch an image. Their hand moves right through what seems to be a solid object! Learners will enjoy this illusion, while investigating principles of light and mirrors. In this version of a popular Exploratorium exhibit, a lightbulb is substituted for a spring.
In this video segment adapted from NASA, learn how engineers are transforming the future of flight by designing airplanes based on principles found in nature. In the early 1900s, the Wright Brothers found inspiration for their first airplane in nature. Their "Flyer," which was modeled on a bird's flexible wing design, was steered and stabilized by pulleys and cables that twisted the wingtips. Despite its success, this control strategy quickly vanished from aviation. Instead, stiff wings capable of withstanding the greater forces associated with increased aircraft weights and flying speeds became the standard. In this video segment adapted from NASA, learn how designs found in nature have inspired today's aerospace engineers as they conceive the next-generation of flying machines. Grades 3-12.
Really interesting video about waves, you can see it slow motion.
Watch the ZOOM cast build a chair out of newspaper by making good use of the strength of triangles.
In this video segment adapted from ZOOM, the cast tries to design and build a bridge made out of drinking straws that will support the weight of 200 pennies.
Science Phenomena: HS Physical Science - Waves and Information (Phys 4.3, 4.4) - A trichroic prism splits light into three beams of light with different wavelengths (or colors). These prisms are used in some video cameras to send different colors of light to different color sensors. The prisms are coated with special coatings to filter and transmit different wavelengths of light. This device could be used to investigate interactions of light with various materials to in increasing complexity K-12.
Explore the after effects of earthquakes and tsunamis around the world using Google Earth.
This interactive activity, from the Building Big Web site, explores tunneling and the tools and methods used to do the job.
This informational text explore how scientists are using robots to explore underwater mountain ranges in the Arctic Ocean. The difficulties associated with under ice exploration are explained. The text is written at a grade four through grade five reading level. This version is a full-color PDF that can be printed, cut and folded to form a book. Each book contains color photographs and illustrations.
This informational text explore how scientists are using robots to explore underwater mountain ranges in the Arctic Ocean. The difficulties associated with under ice exploration are explained. The text is written at a fourth through fifth grade reading level. This is a PDF containing the informational text.
This informational text explore how scientists are using robots to explore underwater mountain ranges in the Arctic Ocean. The difficulties associated with under ice exploration are explained. The text is written at a kindergarten through grade one reading level. This version is a full-color PDF that can be printed, cut and folded to form a book. Each book contains color photographs and illustrations.
Learn more about medical uses of radiation.
This video segment presents a variety of sounds -- from animals to machines to musical instruments -- while introducing the basic concepts of vibration, volume, and pitch.
University Physics is a three-volume collection that meets the scope and sequence requirements for two- and three-semester calculus-based physics courses. Volume 1 covers mechanics, sound, oscillations, and waves. Volume 2 covers thermodynamics, electricity and magnetism, and Volume 3 covers optics and modern physics. This textbook emphasizes connections between between theory and application, making physics concepts interesting and accessible to students while maintaining the mathematical rigor inherent in the subject. Frequent, strong examples focus on how to approach a problem, how to work with the equations, and how to check and generalize the result.