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Physical Boot Camp. 5.5B Identify the boiling and freezing/melting points of water on the Celsius scale.

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physical boot camp

Physical Boot Camp

5.5B

Identify the boiling and freezing/melting points of water on the Celsius scale.

slide2

STAAR 2013 #14; RC 1; Supporting; 471. A student measures the temperature of water being heated on a hot plate. The student observes that the temperature of the water is 53ºC. How many more degrees Celsius must the temperature rise before it reaches the boiling temperature of water?

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STAAR 2013 #14; RC 1; Supporting; 471. A student measures the temperature of water being heated on a hot plate. The student observes that the temperature of the water is 53ºC. How many more degrees Celsius must the temperature rise before it reaches the boiling temperature of water?Boiling point of water: 100ºCSo…..100 – 53 =47

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2004—#32 (70%)

3. When a chocolate bar is heated by the sun, all of the following are likely to be seen EXCEPT—

F boiling

G melting

H a liquid

J a change in shape

slide7

2004—#32 (70%)

3. When a chocolate bar is heated by the sun, all of the following are likely to be seen EXCEPT—

F boiling

G melting

H a liquid

J a change in shape

slide8

2006—#9 (72%)

4. Some students were studying properties of water. One student placed a cup containing 80 mL of water in a freezer. Another student placed an identical cup containing 40 mL of water in a different freezer. Which of the following will be the same for both cups of water?

A The temperature at which the water freezes

B The mass of the frozen water

C The time it takes the water to freeze

D The volume of the frozen water

slide9

2006—#9 (72%)

4. Some students were studying properties of water. One student placed a cup containing 80 mL of water in a freezer. Another student placed an identical cup containing 40 mL of water in a different freezer. Which of the following will be the same for both cups of water?

A The temperature at which the water freezes

B The mass of the frozen water

C The time it takes the water to freeze

D The volume of the frozen water

slide10

2009—#29 (84%)

5. Which two properties of a crayon will stay about the same after the crayon is melted?

A Shape and physical state

B Temperature and hardness

C Color and mass

D Thickness and texture

slide11

2009—#29 (84%)

5. Which two properties of a crayon will stay about the same after the crayon is melted?

A Shape and physical state

B Temperature and hardness

C Color and mass

D Thickness and texture

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10. If the temperature of a sample of pure water is below 0°C, then the water is most likely –

A frozen

B a liquid

C a gas

D warm

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10. If the temperature of a sample of pure water is below 0°C, then the water is most likely –

A frozen

B a liquid

C a gas

D warm

slide22

11. Ice melts because it has reached its –

A magnetism point

B melting point

C boiling point

D freezing point

slide23

11. Ice melts because it has reached its –

A magnetism point

B melting point

C boiling point

D freezing point

slide28

14. A student left a chocolate bar on the window sill on a sunny day. Which of the following would cause the chocolate to melt?

A Electric energy passes through the chocolate and changes its form.

B Different types of matter in the chocolate separate and change form.

C The refraction of the light coming through the window changes its form.

D Heat from sunlight causes the chocolate to reach its melting point.

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14. A student left a chocolate bar on the window sill on a sunny day. Which of the following would cause the chocolate to melt?

A Electric energy passes through the chocolate and changes its form.

B Different types of matter in the chocolate separate and change form.

C The refraction of the light coming through the window changes its form.

D Heat from sunlight causes the chocolate to reach its melting point.

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15. Some students filled a teakettle with water and put it on a hot plate. They heated it until there was nothing left in the teakettle. What happened to the water in the teakettle?

A The particles in the water melted from the heat.

B The hot metal in the teakettle dissolved the water.

C The water reached its boiling point and evaporated.

D The very hot air inside the kettle dried out the water.

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15. Some students filled a teakettle with water and put it on a hot plate. They heated it until there was nothing left in the teakettle. What happened to the water in the teakettle?

A The particles in the water melted from the heat.

B The hot metal in the teakettle dissolved the water.

C The water reached its boiling point and evaporated.

D The very hot air inside the kettle dried out the water.

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16. Ice changes to liquid water when it reaches its –

A magnetism point

B melting point

C boiling point

D freezing point

slide33

16. Ice changes to liquid water when it reaches its –

A magnetism point

B melting point

C boiling point

D freezing point

slide36

18. If the temperature of a sample of water is above 100°C, then the water is most likely –

A frozen

B a liquid

C a gas

D warm

slide37

18. If the temperature of a sample of water is above 100°C, then the water is most likely –

A frozen

B a liquid

C a gas

D warm

slide38

19. According to the passage, which of the following has the higher melting point?

A Ice at 0°C

B Water at 100°C

C Iron at 1,535°C

D Tin at 2,270°C

slide39

19. According to the passage, which of the following has the higher melting point?

A Ice at 0°C

B Water at 100°C

C Iron at 1,535°C

D Tin at 2,270°C

slide42

21. A student adds 50 mL of boiling water to 100 mL of ice water. If the 150 mL of water is then put into a freezer, at what temperature will the water freeze?

A 0°C

B 15°C

C 37°C

D 50°C

slide43

21. A student adds 50 mL of boiling water to 100 mL of ice water. If the 150 mL of water is then put into a freezer, at what temperature will the water freeze?

A 0°C

B 15°C

C 37°C

D 50°C

slide48

24. Which of the following is a characteristic property that could be used to identify a substance as water?

A Water is always a liquid.

B Organisms need water to live.

C Things dissolve in water.

D Water boils at about 100ºC.

slide49

24. Which of the following is a characteristic property that could be used to identify a substance as water?

A Water is always a liquid.

B Organisms need water to live.

C Things dissolve in water.

D Water boils at about 100ºC.

slide52

26. The process where a solid changes to a liquid is called—

A melting

B evaporating

C freezing

D condensing

slide53

26. The process where a solid changes to a liquid is called—

A melting

B evaporating

C freezing

D condensing

slide54

27. The picture shows a pan of boiling water. What process is taking place as the water boils?

A A gas changing to a liquid

B A gas changing to a solid

C A solid changing to a gas

D A liquid changing to a gas

slide55

27. The picture shows a pan of boiling water. What process is taking place as the water boils?

A A gas changing to a liquid

B A gas changing to a solid

C A solid changing to a gas

D A liquid changing to a gas

slide58

M.S. ?’s

29. What unit of measurement is used when recording the temperature of boiling water?

Amilliliter

Bdegrees Celsius

Cgram

Dmillimeter

slide59

M.S. ?’s

29. What unit of measurement is used when recording the temperature of boiling water?

Amilliliter

Bdegrees Celsius

Cgram

Dmillimeter

slide60

30. A glass beaker is placed on a hot plate. Five hundred milliliters of room temperature water are added to the beaker. If the temperature continues to increase, the water in the beaker will most likely—

Aturn into a solid

Bbecome more dense

Cturn into a gas

Dshow no change in temperature

slide61

30. A glass beaker is placed on a hot plate. Five hundred milliliters of room temperature water are added to the beaker. If the temperature continues to increase, the water in the beaker will most likely—

Aturn into a solid

Bbecome more dense

Cturn into a gas

Dshow no change in temperature

slide62

31. Each of the following hypotheses explain freezing point EXCEPT—

Aa liquid changing into a solid

Bthe temperature reaching 100º Celsius

Cliquid precipitation turning into freezing rain

Dthe temperature reaching 0º Celsius

slide63

31. Each of the following hypotheses explain freezing point EXCEPT—

Aa liquid changing into a solid

Bthe temperature reaching 100º Celsius

Cliquid precipitation turning into freezing rain

Dthe temperature reaching 0º Celsius

slide64

32. An ice cube was placed in a plastic cup on the lab table. Students recorded the mass of the ice cube and the plastic cup at 5 grams. One hour later the ice cube completely melted, turning into liquid water. Then the students recorded the mass of the water and the cup. What was the mass of the water and the plastic cup?

slide65

32. An ice cube was placed in a plastic cup on the lab table. Students recorded the mass of the ice cube and the plastic cup at 5 grams. One hour later the ice cube completely melted, turning into liquid water. Then the students recorded the mass of the water and the cup. What was the mass of the water and the plastic cup?

5 grams

slide66

33. Water changes its state of matter when heat is added or taken away. When water reaches its boiling point the particles—

Aare closer together

B stay the same

Care moving more rapidly

Dare moving more slowly

slide67

34. Water changes its state of matter when heat is added or taken away. When water reaches its boiling point the particles—

Aare closer together

B stay the same

Care moving more rapidly

Dare moving more slowly

slide68

34. Which of the following is an example of water reaching its melting point?

AA cup of water sitting outside on a sunny day

B Water simmering on a hot stovetop

CAn ice cube left on the counter

DA cup of water placed in the refrigerator

slide69

34. Which of the following is an example of water reaching its melting point?

AA cup of water sitting outside on a sunny day

B Water simmering on a hot stovetop

CAn ice cube left on the counter

DA cup of water placed in the refrigerator

slide70

35. 0ºC is water’s…

Afreezing point

B melting point

Cboiling point

Dboth freezing point and melting point

slide71

35. 0ºC is water’s…

Afreezing point

B melting point

Cboiling point

Dboth freezing point and melting point

slide72

36. Students completed this chart during an experiment. They heated water to find the boiling point:

Time it Takes for Water to Change State

According to this chart, when did the water begin to boil?

AAfter 1 minute

B After 5 minutes

CAfter 4 minutes

DAfter 3 minutes

slide73

36. Students completed this chart during an experiment. They heated water to find the boiling point:

Time it Takes for Water to Change State

According to this chart, when did the water begin to boil?

AAfter 1 minute

B After 5 minutes

CAfter 4 minutes

DAfter 3 minutes

slide74

37. The temperature of water in a beaker measures 87ºC. How many more degrees must the temperature increase to reach the boiling point?

A23ºC

B 13ºC

C212ºC

D100ºC

slide75

37. The temperature of water in a beaker measures 87ºC. How many more degrees must the temperature increase to reach the boiling point?

A23ºC

B 13ºC (100-87=13)

C212ºC

D100ºC

slide76

38. A science class performs a temperature experiment. Groups measure the temperatures of items in cups. If the temperature of the cup of water measures 100ºC, which statement correctly describes the water?

AThe water is boiling

B The water is cool.

CThe water is freezing.

DThe water is warm.

slide77

38. A science class performs a temperature experiment. Groups measure the temperatures of items in cups. If the temperature of the cup of water measures 100ºC, which statement correctly describes the water?

AThe water is boiling

B The water is cool.

CThe water is freezing.

DThe water is warm.

slide78

39. Students made ice cream to investigate matter and its properties. The students added salt to the ice cream maker so that the mixture would change from a liquid to a solid. Which conclusion provides the most important reason salt was used to make the ice cream solidify?

ASalt dissolves in water.

B Salt adds flavor to the ice cream.

CSalt evaporates in water.

DSalt lowers the freezing point of water.

slide79

39. Students made ice cream to investigate matter and its properties. The students added salt to the ice cream maker so that the mixture would change from a liquid to a solid. Which conclusion provides the most important reason salt was used to make the ice cream solidify?

ASalt dissolves in water.

B Salt adds flavor to the ice cream.

CSalt evaporates in water.

DSalt lowers the freezing point of water.

slide80

40. Four students were experimenting with the boiling point of water.

Measuring Boiling Point of Water

Which student gathered the correct tools for determining the boiling point of water?

AStudent A

B Student B

CStudent C

DStudent D

slide81

40. Four students were experimenting with the boiling point of water.

Measuring Boiling Point of Water

Which student gathered the correct tools for determining the boiling point of water?

AStudent A

B Student B

CStudent C

DStudent D

slide82

41. A student put a cup of water in the freezer and left it there overnight. The next morning the student observed that the water in the cup had changed to ice. Which of the following statements best concludes why the water changed to ice?

AThe water gained energy.

B The water reached its boiling point.

CThe volume of the water decreased.

DHeat was taken away from the water.

slide83

41. A student put a cup of water in the freezer and left it there overnight. The next morning the student observed that the water in the cup had changed to ice. Which of the following statements best concludes why the water changed to ice?

AThe water gained energy.

B The water reached its boiling point.

CThe volume of the water decreased.

DHeat was taken away from the water.

slide84

42. A glass of water is placed in a very cold freezer. Every 5 minutes the temperature of water is measured and recorded:

If the pattern continues, which statement correctly describes the water after 20 minutes?

AThe water temp is 2ºC and the water is still liquid

B The water temp is 1ºC and the water is still liquid

CThe water temp is 1ºC and the water is freezing

DThe water temp is 0ºC and the water is freezing

slide85

42. A glass of water is placed in a very cold freezer. Every 5 minutes the temperature of water is measured and recorded:

If the pattern continues, which statement correctly describes the water after 20 minutes?

AThe water temp is 2ºC and the water is still liquid

B The water temp is 1ºC and the water is still liquid

CThe water temp is 1ºC and the water is freezing

DThe water temp is 0ºC and the water is freezing

slide86

43. A student is given an unknown liquid to rest in the laboratory. The student thinks the liquid is water. Which of the following is most helpful to determine if the liquid is water?

Aboiling point of the liquid

B color of the liquid

Cmass of the liquid

Dvolume of liquid

slide87

43. A student is given an unknown liquid to rest in the laboratory. The student thinks the liquid is water. Which of the following is most helpful to determine if the liquid is water?

Aboiling point of the liquid

B color of the liquid

Cmass of the liquid

Dvolume of liquid