1. What is the phase of water when its temperature is 150°C?
A. solid
B. liquid
C. gas
D. none of above
2. Molten lava pours from a volcano in Hawaii. After a few hours, the liquid lava hardens into a shiny gray rock. Which phase change has taken place?
A. melting
B. freezing
C. boiling
D. condensation
-3 is skipped-
4. An unopened bottle of water is taken out of the refrigerator and placed on a table. After a while, the bottle is covered with droplets of water. What phase change has occurred?
A. melting
B. boiling
C. freezing
D. condensation
5. What is true of a gas?
A. A gas has a fixed shape and will expand or shrink to fill any container.
B. A gas has a fixed shape and has the same volume in any container.
C. A gas has a changeable shape and will expand or shrink to fill any container.
D. A gas has a changeable shape and has the same volume in any container.
A. solid
B. liquid
C. gas
D. none of above
2. Molten lava pours from a volcano in Hawaii. After a few hours, the liquid lava hardens into a shiny gray rock. Which phase change has taken place?
A. melting
B. freezing
C. boiling
D. condensation
-3 is skipped-
4. An unopened bottle of water is taken out of the refrigerator and placed on a table. After a while, the bottle is covered with droplets of water. What phase change has occurred?
A. melting
B. boiling
C. freezing
D. condensation
5. What is true of a gas?
A. A gas has a fixed shape and will expand or shrink to fill any container.
B. A gas has a fixed shape and has the same volume in any container.
C. A gas has a changeable shape and will expand or shrink to fill any container.
D. A gas has a changeable shape and has the same volume in any container.
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1) C
2) B
4) D
5) C
10 Points Prease
2) B
4) D
5) C
10 Points Prease
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1.D water boiling point is 100C at 150 it will have took the form of water vapour...as hot air rises it will eventually reach low pressure condesating forming clouds ect
*grey not Gray 2 should be neither as it would have cooled down so freezing is the closet
4.d
5.d
How old are you...
*grey not Gray 2 should be neither as it would have cooled down so freezing is the closet
4.d
5.d
How old are you...
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1...C..Gas
2...B..Freezing
4...D..Condensation (of atmospheric moisture on the cold bottle).
5...C..A gas has a changeable shape and will expand or shrink to fill any container.
2...B..Freezing
4...D..Condensation (of atmospheric moisture on the cold bottle).
5...C..A gas has a changeable shape and will expand or shrink to fill any container.