https://padlet.com/emmapreston2023/8809xwmmc49h Odden Science, Core 1 en-us 2019-03-18 15:37:43 UTC 2019-03-18 23:09:14 UTC hello@padlet.com emmapreston2023 https://padlet.com/emmapreston2023/8809xwmmc49h/wish/342464785 In this video, the chemical reaction happening is a color change. When you mix the two solutions, the solution turns black. In this reaction, you mix water, a starch pellet, and citric acid with water mixed with sodium iodate. when this happens, let the solution sit, and watch it turn black. To add on to that, after it's done, mix the solution, and the color will reverse and raise to the top of the solution. I know this is a chemical reaction because the new color formed.]]> 2019-03-18 15:40:12 UTC https://padlet.com/emmapreston2023/8809xwmmc49h/wish/342464785 emmapreston2023 https://padlet.com/emmapreston2023/8809xwmmc49h/wish/342470173 In this video, the chemical reaction happening is a color change. The creator mixed Potassium Permanganate (KMnO4) with a sugar and caustic soda solution that is mixing on a magnetic stirrer. When they pour the KMnO4 into the other solution, it starts as a pinkish magenta, but then it goes through many different colors, like a changing light. This happens because the more you mix it, the colors change.]]> 2019-03-18 15:49:18 UTC https://padlet.com/emmapreston2023/8809xwmmc49h/wish/342470173 emmapreston2023 https://padlet.com/emmapreston2023/8809xwmmc49h/wish/342630952 When a cake is being baked, there is a smell that is produced from the ingredients rising, and letting off oxygen that smells like baked goods.]]> 2019-03-18 22:20:05 UTC https://padlet.com/emmapreston2023/8809xwmmc49h/wish/342630952 emmapreston2023 https://padlet.com/emmapreston2023/8809xwmmc49h/wish/342631676 In this video, a student is adding a alka-seltzer tablet to water (H20). The combination of the 2 is making bubbles as the alka-seltzer tablet kind of disintegrates. An alka-seltzer contains citric acid and sodium bicarbonate (baking soda). When you drop the tablet in water, there are bubbles coming off of the tablet.]]> 2019-03-18 22:24:26 UTC https://padlet.com/emmapreston2023/8809xwmmc49h/wish/342631676 emmapreston2023 https://padlet.com/emmapreston2023/8809xwmmc49h/wish/342632387 In this experiment, the fizz is made by a chemical reaction between baking soda and vinegar. The baking soda and vinegar react, and one of the products of the reaction is carbon dioxide. Carbon dioxide forms bubbles and the laundry detergent makes the bubbles last longer. Then, foam is produced.]]> 2019-03-18 22:28:43 UTC https://padlet.com/emmapreston2023/8809xwmmc49h/wish/342632387 emmapreston2023 https://padlet.com/emmapreston2023/8809xwmmc49h/wish/342635827 In this video, the scientist is mixing sodium iodide and lead nitrate which gives a precipitate of lead iodide, a yellow solid. This happens because when the 2 solutions mix, they can bond with each other and make this new substance. Reaction starts at 1:00.]]> 2019-03-18 22:47:13 UTC https://padlet.com/emmapreston2023/8809xwmmc49h/wish/342635827 emmapreston2023 https://padlet.com/emmapreston2023/8809xwmmc49h/wish/342636808 In this video, they have powders of lead nitrate and potassium iodide, that when added to water make liquids. When you pour those liquids together, a new solid is formed. NO3-1 + KI is the formula of this reaction. This is a double replacement. Reaction starts at 2:50.]]> 2019-03-18 22:51:16 UTC https://padlet.com/emmapreston2023/8809xwmmc49h/wish/342636808 emmapreston2023 https://padlet.com/emmapreston2023/8809xwmmc49h/wish/342638119 In this video, the scientist is mixing baking soda and vinegar.When this happens, the temperature of the solution goes down. It also fizzes and makes a new gas, but that's a different reaction.]]> 2019-03-18 22:58:57 UTC https://padlet.com/emmapreston2023/8809xwmmc49h/wish/342638119 emmapreston2023 https://padlet.com/emmapreston2023/8809xwmmc49h/wish/342638970 This is very similar to the other temperature video. In this one, they microwaved the vinegar, so it's very hot. When they add it to the baking soda, the temperature just keeps going up. This reaction starts at 1:25.]]> 2019-03-18 23:03:54 UTC https://padlet.com/emmapreston2023/8809xwmmc49h/wish/342638970 emmapreston2023 https://padlet.com/emmapreston2023/8809xwmmc49h/wish/342639348 In this video/lab, students mix vinegar and iron filings.  The two chemicals react to produce hydrogen sulfide gas which smells like rotten eggs. ]]> 2019-03-18 23:06:19 UTC https://padlet.com/emmapreston2023/8809xwmmc49h/wish/342639348