Show Me Some Science: Constructive and Destructive Interference

We are super excited to release our first podcast in our new series, Show Me Some Science! These short podcasts are designed to be used in the classroom or incorporated into your lessons.

In this episode we look at wave interference. When two waves meet they can interact before they pass through each other. They can add up or cancel out and this is know as constructive and destructive interference.

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Mixtures 10: Mixing Carbon Dioxide in Water

In this last segment of the mixtures episode, Brian shows how fun and delicious it is to mix Carbon Dioxide and water!

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Mixtures 10: Download Links
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The Making of Weather and Science Day

The Colorado Rockies, 9News and Colorado State University are teaming up to launch the Fifth Annual Weather and Science Day at Coors Field on April 23, 2014.

Here’s a video of the Little Shop of Physics Team getting ready for the big event!

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Download
Use these links to download the movies to your computer. You can “control+click” to save the file.

Mixtures 9: Mixtures in Nature and Unimixing with Salt

Rivers can be a great example of mixtures, when the water carries rocks, sand and clay and deposits them in different places. Join geologist (and EverDay Science Producer!) Herb Saperston as he explores mixtures along the Podure River.

Also, we look one last time at mixing and unmixing. This time the secret ingredient is salt!

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Mixtures 9: Download Links
Use these links to download the movies to your computer. You can “control+click” to save the file.
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Mixtures 8: Unmixing Milk

You may have never thought about this, but milk is a mixture of different substances including proteins, sugars, and water. Learn how to “unmix” milk to make curds and whey!

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Mixtures 8: Download Links
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Mixtures 7: Unmixing Plastic and Sand

Last time we saw that it is possible to unmix a mixture, or separate it into it’s constituent parts. This week we will learn how to unmix different types of plastic so they can be recycled. And we’ll learn how to unmix sand from Dominica.

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Mixtures 7: Download Links
Use these links to download the movies to your computer. You can “control+click” to save the file.
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Mixtures 6: Empedocles and Unmixing

Empedocles was an ancient Greek Philosopher and the first Western thinker to propose that everything in the world was a mixture of basic substances. He believed the four elements were Earth, Air, Fire and Water.

In this podcast we also look at physically un-mixing, or separating out mixtures into their basic substances.

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Mixtures 6: Download Links
Use these links to download the movies to your computer. You can “control+click” to save the file.
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Mixtures 5: Hot Cocoa

Cocoa does not like to mix with cold water. Brian and the team use emulsifiers, heating and good old fashioned stirring to get the cocoa to mix in for a delicious beverage!

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Mixtures 5: Download Links
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Mixtures 4: Paper Boats

We’ve already seen that oil and water don’t mix. In this episode, we see how we can use this to propel little paper “boats” on the surface of water.

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Mixtures 4: Download Links
Use these links to download the movies to your computer. You can “control+click” to save the file.
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Mixtures 3: Magic Sand

Magic Sand is specially treated sand that does not get wet! Another way of thinking of it is that it does not mix with water. At all. We play around with magic sand and then find a way to get it wet!

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Mixtures 3: Download Links
Use these links to download the movies to your computer. You can “control+click” to save the file.
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