https://padlet.com/gzuckerman2022/smb0koxvj44f Made with an open mind en-us 2018-02-28 17:49:43 UTC 2018-03-09 14:22:58 UTC hello@padlet.com gzuckerman2022 https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239855332 This video shows hydrochloric acid being added to sodium carbonate. When you add hydrochloric acid to sodium carbonate powder it fizzes.  This turns into gas which creates a new substance. This is a chemical reaction because it creates a new substance and it has effervescence. This is an endothermic reaction.]]> 2018-03-08 19:04:04 UTC https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239855332 gzuckerman2022 https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239857693 This is a video of sugar being burned. When you burn sugar it begins to turn brown or black, it burns and then turns into a liquid substance and emits a very pungent sweet/burned Aroma. This is a chemical reaction because a new substance is formed and the combination of sugar and fire create a pungent Aroma. This is an endothermic reaction. ]]> 2018-03-08 19:07:22 UTC https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239857693 gzuckerman2022 https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239859442 This video shows Copper Sulfate being added to sodium carbonate. The substance in this video turns from clear to light blue when the copper sulfate is put into the test tube with the sodium carbonate. This is a chemical reaction because it created a precipitate which is a new substance and turned a different color. This is an exothermic reaction.]]> 2018-03-08 19:09:55 UTC https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239859442 gzuckerman2022 https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239863169 2018-03-08 19:15:01 UTC https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239863169 gzuckerman2022 https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239872440 2018-03-08 19:28:08 UTC https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239872440 gzuckerman2022 https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239878354 This is a video of hand warmers being activated with air. When the iron powder inside of the hand warmer reacts with air to yield iron oxide or rust. This is a chemical reaction because it is creating a new substance and the temperature of the hand warmer is changing when it reacts with air. This is an exothermic reaction]]> 2018-03-08 19:37:35 UTC https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239878354 gzuckerman2022 https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239882407 This is a video of calcium chloride solution and baking soda solution being added together. This is an endothermic reaction. This mixture forms a solid and a gas in addition it fizzes. This shows that it is a chemical reaction, and a precipitate.]]> 2018-03-08 19:43:59 UTC https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239882407 gzuckerman2022 https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239916935 A new material is made called rust when you mix oxygen and iron. This forms a new compound. This is a picture of rust. You know this is a chemical reaction because rust forms into a solid sticking on to something else. ]]> 2018-03-08 20:54:14 UTC https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239916935 gzuckerman2022 https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239917992 This is a photo of glowsticks all light up. The glow sticks contain two chemicals and a dye. They are called sensitizer, or fluorophore. When you crack the glowsticks these mix together creating the glow that you see. This is a chemical reaction because the sticks are changing color and the two chemicals are mixing to create a new substance. This is an exothermic reaction]]> 2018-03-08 20:57:01 UTC https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239917992 gzuckerman2022 https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239983578 This is a video of alka seltzer dissolving in water. The tablet starts to dissolve and turn into a liquid while making bubbles and a fizzing noise. This is a chemical reaction because it changes into a new substance and it creates effervescence. ]]> 2018-03-09 01:38:18 UTC https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239983578 gzuckerman2022 https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239985256 This is a photo of coffee. When water is added to coffee grounds their flavor seeps into the water creating coffee. This mixture creates a very bitter and pungent aroma. This is a chemical reaction because the coffee beans are changing into a new substance and creating a bitter smell. ]]> 2018-03-09 01:44:49 UTC https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239985256 gzuckerman2022 https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239986833 This is a photo of what happens when you add sodium arsenate and glacial acetic acid to sodium thiosulfate. Crystals of golden arsenious sulfide, form making it a new substance and showing how it works. This is a chemical reaction because it changes into a gold color and creates a new substance. This is an endothermic reaction.]]> 2018-03-09 01:52:40 UTC https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239986833 gzuckerman2022 https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239988723 This is a video of Baking soda, vinegar, and water. When the two were combined the temperature of the vinegar decreased. This is a chemical reaction because there is a temperature change and a new substance is created. This is an Exothermic reaction.]]> 2018-03-09 02:01:56 UTC https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239988723 gzuckerman2022 https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239990707 This is a video of the substance that is formed when silver nitrate and sodium chloride are combined. This creates a precipitate. This is a chemical reaction because there is a new substance formed. This is an endothermic reaction.]]> 2018-03-09 02:10:57 UTC https://padlet.com/gzuckerman2022/smb0koxvj44f/wish/239990707