Sunday, November 14, 2010

What are the answers to these chemical and physical ... changes?

name the physical properties you would use to tell the difference between the following pairs of objects



1. coal and snow

2. vinegar and water

3. lead and copper

4. strawberry and vanilla ice cream

5. salt and sugar

6. a baseball and a football

7. cubes of silver and platinum



1. what physical property could you use to seperate sand and sugar? how would you use it?



2. use the law of conservation of mass to explain why a rusty nail weighs more than the original nail



1. the melting point of ice is a __________property

2. density is a ___________ property.

3 ___________ changes produce new substances

4. the total_____________of original and new substances is the same after a chemical change

5. stainless steel's ability to resist rust is a _________ property

6. the unit of measuring density is __________

7. the ______________point of water is 100 degrees celcuis

8. natural gas for cooking has the property of ____________

9. the particles of a gas have ____________between them

10. ductility is a ____________ property of copper

some of these words can be used more than once

chemical physical rusting luster

reacting heated evaporating matter



1. ______________

has undergoes

2.__________ 3.____________ 4.___________ 5.________

properties such as properties such as changes such as changes {# 5 continued}such as burning and

6.___________ 7.____________ 8.________ 9.__________

and volume (#7)with oxygen and changing when (#9) %26amp; melting

10.______________What are the answers to these chemical and physical ... changes?
1. color

2.odor

3.color or density

4.color

5.heat would melt the sugar, you should not taste them, also salt crystals are cubes

6.shape

7.density



1. P

2. P

3. C

4. mass

5.C

6. g/ml

7. bp

8.burning-chemical property

9. more space

10. P

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