TRUE OR FALSE
PS.PA AYOS
1. sugar and salt dissolved in water undergroes phase change from solid to liquid .___
2 wood and paper after broken and torn into pieces changes in size and color
3.the Rock was pounded and biscuits was into pieces it changes it's size shape,and form
4.in physical change only the properties changes in a material .
5.in physical change there is a new material formed
6.when banna was cut into two and exposed in open area it changed in color
7.there is a chemical reaction. between the open part of the banna and oxygen in the air
8.chemical reaction of material to oxygen is called carbonation?
9. oxidation also happens in metals especially materials made of iron
10. unpainted iron nails did not to rust longer than other iron nails exposed in open area for 5 to 10 days
PS.PA AYOS
1. sugar and salt dissolved in water undergroes phase change from solid to liquid .___
2 wood and paper after broken and torn into pieces changes in size and color
3.the Rock was pounded and biscuits was into pieces it changes it's size shape,and form
4.in physical change only the properties changes in a material .
5.in physical change there is a new material formed
6.when banna was cut into two and exposed in open area it changed in color
7.there is a chemical reaction. between the open part of the banna and oxygen in the air
8.chemical reaction of material to oxygen is called carbonation?
9. oxidation also happens in metals especially materials made of iron
10. unpainted iron nails did not to rust longer than other iron nails exposed in open area for 5 to 10 days
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Answer:
true
false
true
true
false
false
false
true
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Answer:
1. T
2 F
3.T
4. T
5. T
6. T
7. T
8. T
9. F
10. F