THURSDAY FEBRUARY 12, 2015WOD- Chemical Reaction

 when a substance (or a few substances)

change into another substance (formation of a solid).

Objective - 6.5 D How do we know a chemical reactionhas taken place?

FLASHBACK FRIDAYFEBRUARY 13, 2015

Writing assignment On a separate sheet of paper, explain (3 sentences or more) Science Lab Best practices for working with chemicals. Do not list, write complete sentences.

Include proper equipment and procedures.Objective - 6.5 D How do we know there

has been a chemical reaction?

WHEN FINISHED, RINSE CUPS AND LIDS, INVERT ON PAPER TOWELS. FOLD APRONS AND LEAVE ON COUNTER WITH GOGGLES.

rusting of iron

combustion (burning) of wood

metabolism of food in the body

mixing an acid and a base, such as hydrochloric acid (HCl) and sodium hydroxide(NaOH)

cooking an egg

digesting sugar with the amylase in saliva

mixing baking soda and vinegar to produce carbon dioxide gas

baking a cake

electroplating a metal

using a chemical battery

explosion of fireworks

rotting bananas

grilling a hamburger

milk going sour