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Sunday, October 30, 2016

Chemical Reaction Quiz

2. Marco 
The student is able to distinguish between physical change and chemical reaction


          1.Marco tears a piece of notebook paper into smaller pieces, tearing paper into pieces is an example of what kind of change?

               2. Which process is an example of a physical change?
         
A. burning

B. rusting
.
 C.flattening


3. Chemical changes result in new substances, but physical changes do not. Which process is an example of a chemical change?

A.
baking a cake
B.
chopping a tree 
C.
heating a cup of tea

  4.
 Which observation is a sign of a chemical change?

A.
A rotting potato gives off a bad smell.
B.
A melting block of ice leaves a large puddle.
C.
A cloud changes shape when blown by wind.
D.
A plaster statue breaks when it falls onto the floor.


                     5. There are several differences between chemical and physical changes. Which process is an example of a chemical change?

A.
steam rising from a boiling pot of soup
B.
a metal railing rusting in damp weather
C.
alcohol evaporating from a cotton swab
D.
a piece of wood shrinking as it dries out


Chemical reaction
I researched more than requested and can accurately identify and explain a chemical reaction.


I can identify and explain a chemical reaction.



I still can’t identify and explain a chemical reaction.




What I will do now.




 
                                




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