Exploring the antithesis of the wave model, this album of eight computer-animated video segments looks at the particle approach to studying light. Black-body radiation, Planck's constant, the Photoelectric Effect, and the work of James Clerk Maxwell are presented as forerunners to Einstein's concept of photon frequency. Examples of a slope intercept graph and a revised double-slit experiment using light-sensitive paper segue to an illustration of...

We introduce students to the concept that the movement of an object is always relative to something else. We call it "sunrise" but does the sun really rise? Can we stand still and move around from place to place at the same time? If a car is moving forwards, can it also be moving backwards at the same time? And can we throw a single ball towards the left and towards the right at the same time? The answers to all these questions will be answered and...

Light is why the sky is blue and the grass is green. Light is an intrinsic part of human life but we are still trying to understand it. The greatest names in science - Aristotle, Gallileo, Newton, Leonardo, and Einstein - have struggled to unravel its mysteries. This is the story of man's attempt to understand the most elusive phenomenon; told through the dramatic reconstruction of events and experiments that have advanced our knowledge and broadened...

"Dunrea's ink and watercolor images beget an understandable and cozy world, this time with just a hint of spookiness and autumnal gloom." Publishers Weekly This Halloween, Gossie is a wizard and Gertie is a chicken. Peedie is a dragon and BooBoo is a bunny. Ollie is a mummy who thinks sharing is more fun than scaring. Join the goslings as they hoot, howl, and haunt the night away.

Four mice enjoy a beautiful spring day as they hunt for Easter eggs.

After getting a fluttery feeling while helping Mouse make valentines for each of their friends, Mole sends her a series of notes and gifts, signing them "your secret valentine."

On Christmas Eve, Ollie and the other goslings anxiously await the arrival of Father Christmas Goose.

In Episode 5 of the Shedding Light on Acids and Bases series, Advanced Acid-Base Chemistry, we take a deeper look at pH and explain how the numbers on the pH scale are actually related to the number of H+ or OH- ions present in an acid or a base. We then descend even deeper down—to the atomic level—to explain what actually happens when acids react with bases and what actually happens when acids react with metals. We introduce students to ionic...

When Ann worries that she is not good enough to participate in Sports Day, her teacher encourages her to try her best.

Theres nothing like a cold glass of lemonade on a hot summer day! With that in mind, George decides to set up his own lemonade stand to earn money for a new soccer ball. But George has a lot to learn about running a stand. With help from his friend Betsy, Georges stand becomes such a success that there are too many customers and not enough lemonade. Will he figure out how to satisfy all his customers and earn enough money for a new soccer ball? ...