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This video explains how to roast a perfect marshmallow and what happens when you do roast it.

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Watch more Camping Equipment & Tips videos: http://www.howcast.com/videos/25332-How-to-Roast-the-Ultimate-Marshmallow Roasting marshmallows may seem simple. But there's a right way and a wrong way. Here's the right way. Step 1: Make sure the fire is perfect for roasting Check the fire and make sure it has areas that have burned down to embers.

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This video shows the science of hand warmers and how they are chemical reactions.

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Sometimes during these cold winter months you need a little help to stay warm. This is especially true if you are spending long periods of time standing or sitting outside, without moving around much to help you stay warm. Fortunately, about 90 years ago, a Japanese inventor named Niichi Matoba found a solution by inventing the first portable hand warmer.

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This is just a cool video of someone using glow sticks. You see how they break the glow stick first and then it glows. Again you don't need to watch the whole video.

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The Most Epicly Filmed Glowsticking Video You Will Ever See

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Filmed by Blake Johnson Music by 952 Crew-"Our Last Chance" Download the music here: http://itunes.apple.com/us/album/our-last-chance/id388533535?i=388533733 Glowstringing by Anna Schlosser (schlosser90) Camera: Canon T2i This was filmed to show the passion and art of glowstringing and sticking, to show peace, love, unity and respect. Glowstringing is my passion and it's been an amazing experience learning this art.

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This is a video of microwave popcorn. It just quickly shows how to make popcorn and what the popcorn is like in the beginning and then after it bakes (you don't need to watch the whole video).

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How to make Homemade Microwave Popcorn - Epic Friday Kitchen Tips!

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How to make Homemade Microwave Popcorn, now this is Easy Cooking! Subscribe to Chef Kendra's Easy Cooking Channel so you never miss anything new! http://goo.gl/XhUhW http://chefkendraseasycooking.com/show-174-shrimp-roll-sliders-2/ How to make Homemade Microwave Popcorn - Epic Friday Kitchen Tips! http://www.youtube.com/watch?v=rg8Vm2AA0zw Use your new found popcorn mastery to make my tasty caramel corn recipe: http://www.youtube.com/watch?v=aCXhkRrDkAE This goes great with movies, of course.

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This video shows what happens when baking soda and vinegar are mixed. You can see all the fizz come out and the bubbles.

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These eggs that are being fried on a frying pan are an example of a new substance because by heating the eggs it goes from a liquid inside a shell into something u can pick up and eat. All chemical reactions change into another substance and this is just another example.

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Roasting a marshmallow is an example of creating a new substance because after the marshmallow is in the fire, it starts to burn turning it into a new substance.

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Other times when chemicals react, heat is lost. The chemicals in the cold compress takes the heat from your body and makes it cool off. That's why this is an example of a temperature chemical reaction.

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Sometimes when chemicals react, heat is given off. With these hand warmers there are two chemicals that react with each other when bags are crushed. It goes from being at a normal temperature to being hot which is why it's a chemical reaction.

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Rusting is also an example of replacement because it goes from the original metal to a layer of rust over it creating a new look/substance. It replaces the original substance with a new substance on top of it.

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The glow stick is an example of replacement because when the two compounds are mixed together they create light which is a chemical change. They replaced what the 2 original compounds were and create light.

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Popcorn is an example of a chemical reaction because it gives off an aroma. When the kernels get heated, they start to pop and turn into popcorn. The smell is overwhelmingly yummy.

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When cookies are baked, they go from multiple ingredients that are separated, into one final product. Usually cookies give off a pleasing smell that makes everyone crave them.

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Fizz can also be created by mixing vinegar and baking soda. That's also how people make their own volcanoes. It's a chemical reaction because the two substances mix together creating bubbles.

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These Alka Seltzer tablets create fizz in the water and it's a chemical reaction because it acts with the water to create Carbon Dioxide gas. Usually the bubbles mean a chemical reaction unless the bubbles are from boiling which is a physical reaction.