This program explores the various properties of magnets and the characteristics of magnetic force. Colorful graphics and real-life footage explain how magnets are used in generating electricity. Electromagnets and their many uses are demonstrated as well. Other terminology includes: magnetic poles, magnetic field, electric motor, generator, solenoid, and electromagnetism.

In a science lab, it's important to know how to take accurate measurements. This clip demonstrates how to: measure temperature using a thermometer, use an analytical balance, and measure the volume of a liquid using a measuring cylinder, taking into consideration the meniscus.

Airports implemented full body scanners as a security measure. This video identifiesthe three companies that manufacture commercial full body scanners, the two types of scanners, and how the scanners work.

Metals have had such an impact on civilization that we name some eras for the discovery of specific metals: the Bronze Age and the Iron Age. In this program, learn about the characteristic and properties of metals, as well as the appearance of metals throughout history. We’ll explore prehistory; metals and tools; the first metals to be discovered; advantages of metal as compared to stone, wood, and bone; pure metals; alloys; heavy metals; iron;...

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.