Download Amazing Kitchen Chemistry Projects You Can Build Yourself by Cynthia Light Brown PDF

By Cynthia Light Brown

Young ones will how you can shoot sweet and soda 10 ft up within the air or create a crystal college with the most important chemistry thoughts and intriguing but academic tasks during this guide. With greater than dozen attention-grabbing initiatives illustrating significant chemistry themes—including atoms and molecules; the features of solids, drinks, and gases; chemical reactions; acids and bases; and the houses of water—children research the idea in the back of each one undertaking after which see the rules in motion. a mix of wacky experiments, yummy cooking initiatives, and weird creations, the actions can all be accomplished utilizing universal family fabrics and contain strolling on “goop,” making taffy, viewing the realm from inside of a huge bubble, and plenty of extra guaranteed to retain young children investigating how the area works.

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Quickly put the rocket on the ground with the lid side down. Stand back! Do you remember how many seconds it took for the lid to pop off? Start your countdown! 7G@S`R(@OODMHMF The Alka-Seltzer tablet is a mixture of baking soda, citric acid, and some other ingredients. In the presence of water, the baking soda and citric acid (the reactants) react to form new substances—carbon dioxide and sodium citrate (the products). That means the molecules in the tablet are breaking apart and forming new ones.

But what exactly is an acid? An acid is a substance that can release a hydrogen ion. Hydrogen is the element that has one proton and one electron. Hydrogen easily gives up its electron, which is in a shell by itself, and becomes a positively charged ion (H+). 38 "DJET#BTFT 0ROPERTIESOFACIDSANDBASES Acid Releases a proton (H+). Corrodes metals. Turns litmus paper red. Tastes sour. ) Try tasting lemon juice or even a little vinegar. Some acids, from strongly acidic to weakly acidic, are stomach acid, lemon juice, vinegar, sauerkraut, and rainwater.

Usually, what starts the reaction is heat, but it can be a physical shock for especially sensitive explosives like liquid nitroglycerin. Dynamite is probably the best known explosive. Dynamite is composed of either wood pulp or diatomaceous earth soaked in nitroglycerin and pressed into a stick shape. Nitroglycerin is very unstable—it can explode if it is disturbed—so the wood pulp helps to stabilize the dynamite. %MDQFX Reactions involve changes in energy. Some reactions give off energy, usually in the form of heat, and they’re called exothermic.

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