Download e-book for iPad: Amazing Kitchen Chemistry Projects You Can Build Yourself by Cynthia Light Brown

By Cynthia Light Brown

ISBN-10: 1934670065

ISBN-13: 9781934670064

Young ones will shoot sweet and soda 10 toes up within the air or create a crystal college with the most important chemistry options 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, beverages, and gases; chemical reactions; acids and bases; and the houses of water—children study the idea at the back of each one undertaking after which see the rules in motion. a mixture of wacky experiments, yummy cooking initiatives, and strange creations, the actions can all be accomplished utilizing universal family fabrics and contain jogging on “goop,” making taffy, viewing the area from within a tremendous bubble, and lots of extra guaranteed to retain young ones investigating how the realm works.

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It turns out, though, that the glass was probably uneven when it was made because of the glassmaking techniques at the time. Glass made now is very even in thickness, and experiments don’t show glass flowing, even over long periods of time. In fact, glass made during the ancient Roman era hasn’t deformed over many centuries. Most scientists think of glass as 7INDOWGLASS RAWRUBBER an amorphous solid. Just to confuse matters, though, glass does have some VOLCANICGLASS WAX AND properties of liquids, mainly its random FULGURITESGLASSTHATFORMS arrangement of atoms, so there are some WHENLIGHTNINGSTRIKESSAND scientists who think of glass as its own AREAMORPHOUSSOLIDS state of matter, neither liquid nor solid.

Since a base is the opposite of an acid, it is any substance that can accept a hydrogen ion (or proton). A base often has what’s called a hydroxyl group, or (OH-), because the hydroxyl group will react easily with a hydrogen ion to form water. These definitions of acids and bases sound very simple. Just one little proton moving around. What’s the big deal? That one little proton moving around and reacting has powerful consequences—a strong acid or base can eat through your skin, or even metal. ZNgV[T
=_\WRPa` O( We measure the acidity or alkalinity of a substance by using the pH scale.

COPPERREACTINGWITHTHE The pennies that are rinsed begin the slow ATMOSPHERE4HECOPPER process of forming copper oxide again, and will PATINA SOMETIMESCALLED turn a dull brown over time. The pennies that aren’t VERDIGRIS ACTUALLYPROTECTS rinsed still have vinegar and salt on them. These THESTATUEFROMFURTHER pennies develop a bluish-green coating, or patina. CORROSION THOUGH BECAUSE It is a complex patina of copper chloride. ITPROVIDESABARRIER When the vinegar and salt solution dissolves the BETWEENTHEPURECOPPER copper oxide, some of the copper dissolves too.

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

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