Using Citable in Google

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Dancing Spaghetti

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Materials Large beaker 150ml graduated cylinder 50ml cups of vinegar 2 tsp baking soda 50ml water  8-10 sticks of broken spaghetti. Food colouring  Procedure Fill the beaker with water  Measure and pour 100 ml of vinegar into the beaker. add the food colouring - if needed Add two tablespoons of baking soda to the water and mix thoroughly. Put eight to ten pieces of broken spaghetti in the beaker and wait until the spaghetti settles to the bottom. A chemical reaction will take place, causing the spaghetti to move in the beaker.  Repeat experiment with different ratios of water, vinegar, and baking soda. Whats happening The noodles will bob up and down for several minutes. This noodle “dance” is captivating to watch. Since the surface of the noodles is rough, tiny bubbles of carbon dioxide gas are attracted to it. These bubbles increase the volume of the noodle substantially, but contribute very little to its mass. As a result, the...
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Explosion boxes

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Box example Explosion Boxes If you love pop-ups – those playful, joyful constructions that bring books and cards to life –  then you will enjoy making “ explosion boxes .” These popular 3D paper crafts take pop-ups to a  whole new world. Like pop-ups, “explosion boxes” offer an engaging way to invite students into the world of  math and engineering. They encourage students to explore and work with measurement, parallel  and perpendicular lines, angles, triangles, symmetry, and transformational geometry, all in the  context of engaging students to design and make themselves. Although the deepest learning comes when students design from scratch,  The simple explosion box shown here is designed to enclose a small Valentine’s Day treat, gift, or note.  It can be printed first and then cut, or cut without printing from coloured card stock or plain white paper  that students decorate themselves. Box Example ...
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Bouncing a raw egg!

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As it was Aprils Fools and Easter, we needed to do some experiemnts that combined both eggs and fooling the adults!! Apparatus: White wine Vinegar Egg Method: Fill your glass full enough with white vinegar so that you can completely cover your egg. Pop your egg in and look closely! See all of those bubbles on the surface - that's what's going to get our egg naked! To get your egg entirely naked will take at least 24 hours! It's well worth the wait though, I promise! Gently! Bounce your naked egg, yes, you read the correctly! Naked eggs bounce! Too much fun. Get started, right away! And remember to come back and read how it all works too! What's going on? Why does vinegar get our egg naked? Well, the first clue are those little bubbles that you can see! Those bubbles mean there's a chemical reaction going on!  The shell of an egg is made of calcium carbonate (CaCO3). This reacts with the acid of the vinegar and causes bubbles of carbon ...
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