Nearly two hundred years after Faraday wowed his audiences by demonstrating electromagnetic induction, this video uses a variety of contemporary examples to illustrate how it is possible to produce and distribute electrical energy on a large scale. Topics include electric and magnetic fields, electromagnets, the motor effect and EM induction particularly concentrating on transformers and Tesla coils.

A craft activity that teaches how to make a skyscraper out of newspaper.

14-year-old Zoë is an acrobat. She lives with her parents in a Dutch circus and the aerial silks are her favorite discipline. She practices often. She climbs high into the silks which hang down from the top of the circus tent. Her favorite tricks are the ‘drops.’ Zoë wraps herself into the silk so that when she lets herself fall, the cloth catches her just above the ground. She falls because of gravity. Zoë wants to know more: how does gravity...

Sunscreen is a combination of organic and inorganic materials. This video identifies three types of ultraviolet light, the elements in sunscreen, and how sunscreen protects our skin from ultraviolet rays.

This film explores how echolocation/sonar works, in technology and in animals. This film explores how echolocation/sonar works, in technology and in animals. This film explores how echolocation/sonar works.....

Dr. Catherine Low discusses difficulties students have with models and concepts of light and matter. Catherine recently completed her PhD in Theoretical Particle Physics and is currently teaching senior physics in New Zealand. Catherine Bell discusses the importance of phase in understanding the behavior of waves. She is completing a PhD on Phase Microscopy and is currently teaching senior Physics.

This lesson explores the similarities and differences between animal and plant cells. Students will learn about the cell membrane, cytoplasm, and nucleus in both animal and plant cells. They will also explore the functions of chloroplasts and cell walls in plant cells and specialized animal cells. The lesson also details levels of organization, including the way animal and plant cells form tissues, tissues form organs, and organ systems form the complex...

Other than the air that we breathe, nothing is more ordinary in our lives than electricity. We flip the switch and the light illuminates. A gesture that 100 billion humans make, hundreds of times per day. 10 billion humans who all have the same right to electrical comfort. It’s perhaps the biggest challenge in the history of humanity. One by one, we have conquered and mastered energy sources that our planet provides us with, and, thanks to our planet,...

Provides a simple introduction to the natural forces of gravity, electromagnetism, and magnetism.

Is it magic? No, it s science! Make reading your superpower with DK s beautiful, leveled nonfiction. Use your reading superpowers to learn all about the magic of magnets - a high-quality, fun, nonfiction reader - carefully leveled to help children progress.