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I thought it was interesting that baking is a great example of many chemical changes

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I thought it was cool to learn that chemical changes sometimes make smells, or release light or gases. Lots of chemical changes also require the taking in or giving off of heat.

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Nith Sanabria a compound is two or more elements combined 

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Nith Sanabria a compound is two or more elements combined 

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John I learned the differentness between mixture and compounds

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John I learned the differentness between mixture and compounds

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The holes in a cake are bubbles that are from the escaped carbon dioxide.

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You cannot undo chemical after it changes

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eggs contain bacteria that you have to bake out.

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to be a chemical change :
- you cannot unto it
- you can not take the mattereal out of it
- smell changes
- color changes

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colors that are changed by a chemical changed can't be changed back

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Eggs may have been home to squirming salmonella bacteria and an estimated 142,000 Americans are infected this way each year.

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a compound is atoms of two or more elements.

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I learned that 5 to 6 thousand years ago, people began mixing copper with various other elements.

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I thought it was interesting that they made soap before bathing with water

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A chemical changes can't be changed back to what it was before in most cases.

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A chemical change happens when something is changed and cannot be changed back.

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i was surprised that i fire was the first chemical reaction i thought it would be something else

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Chemical changes sometimes makes matter change color. (Ex. the blackened remains of a match)

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Everything that is alive needs nitrogen.

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everything that is alive needs nitrogen .to make nitrogen into a useful forms they could only use bacteria .

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eggs are home to squirming salmonella bacteria .

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An example of a chemical change is a match burning

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salt is a compound made from many chemical reaction .

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baking is just like chemistry

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Burning is a chemical change

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In 1913 a scientist discovered that pretty much in everything we cook there is sugar and amino acids .

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We owe most delicious foods to caramelization.

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Caramelization happens at 356 degrees and lasts until 390 degrees.

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Fire was our first look into the science of chemistry.

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I learned that Baking Soda's real name is Sodium Bicarbonate.

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Maillard Reactions happen at 310 degrees. It's when proteins and sugars break down and rearrange themselves forming ring-like structures. That reflect light giving the rich brown color and release the smell of them being cooked

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We have thousands of chemical reactions in us every second.

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Salmonella can live in 32 degree fahrenheit and 136 degrees fahrenheit.

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In 1913 the Maillard Reaction was discovered how food and drinks change when heat is added

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I learned that emulsions are mixtures of two substances that don't want to be together.

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Butter is made of two ingredients that don't want to combine (water and fat).

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You dont need a timer for cookies you can smell caramelization and that means they're done.

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More people are affected by salmonella than one might think.

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I learned the difference between compounds and mixtures

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I learned in the brainpop about different heterogenous and homogenous mixtures.

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fire was the first chemistry reaction

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142,000 people are effected of salemina

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salmonella can live for weeks outside the body

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I learned that you don't necessarily need a kitchen timer you can use your sense of smell to tell when your cookies are done

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With a compound, a chemical change takes place, and with a mixture, a physical change takes place.

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I learned....

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Something heterogeneous is salad dressing. Something homogeneous is salt water.

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when two elements or compounds combine you get a mixture 

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when two elements or compounds combine you get a mixture 

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Brainpop: There are heterogeneous compounds and homogeneous compounds

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watar is a molecule

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Brainpop: there are homogenous and heterogenous compunds

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Brainpop: A Homogenous and Heterogenous are mixture.

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Brainpop: Homegeonous and heterogenous are two mixtures and the oly mixtures.

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Compounds don't look anything like their original elements

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Brainpop:
Salt and water are molecules
Hydrogen and oxygen are elements

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Heterogeneous- you can see the different parts of the mixture
Homogeneous- you cannot see any differences in the mixture

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I learned from Brainpop that there are heterogenous mixtures and homogeneous mixtures.  An example of both would be salt water and salad dressing.

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Salt is a compound made from a chemical reaction between green chlorine gas and sodium