(solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and...

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Freezing (solid), Melting (liquid), Evaporation (gas) Study Presentation INCLUDING WATER STATE CHANGE GRAPHS

Transcript of (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and...

Page 1: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Freezing (solid), Melting (liquid),

Evaporation (gas) Study

PresentationINCLUDING WATER STATE CHANGE GRAPHS

Page 2: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,
Page 3: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,
Page 4: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,
Page 5: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,
Page 6: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Lesson Vocabulary

1. Melting- solids gain heat and change into liquids

2. Freezing- liquids lose heat and change into solids

3. Evaporation- liquids gain heat and change into gases

4. Condensation- gases lose heat and change into liquids

5. Boiling- liquids gain heat and quickly change into gases

Page 7: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Changing State

How does an ice cube turn into a puddle of water?

-It melts

MELTING is the process by which a solid changes to a liquid.

To melt a solid, you must add (HEAT) energy to it.

Page 8: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

How does a puddle of water change from a liquid to a gas?

-It can evaporate.

EVAPORATION is the process by which a liquid changes to a

gas.

Page 9: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

What is happening when a liquid

changes into a solid?

FREEZING is the change of state

from a liquid to a solid.

*The particles move

slowly and get close

together. It causes liquid

to freeze.

Page 10: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Is this an example of melting, freezing,

or evaporating?

a) Melting

b) Freezing

c) Evaporating

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Answers

Page 12: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

In which state is the snow?

a) Melting

Page 13: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

In which state is the puddle?

a) Freezing

Page 14: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

In which state is the puddle on the

road?

d) Evaporating

Page 15: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

In which state is the road?

b) Freezing

Page 16: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Part 2

Factors that

influence the rate

of Evaporation

Page 17: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Factor 1 - Temperature

The higher the temperature the faster the rate of evaporation.

Heat is added.

Page 18: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Which puddle will evaporate

faster?

A B

Page 19: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Factor 2 - Wind

The more wind or air circulation the faster the rate of evaporation.

Page 20: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Which puddle will evaporate faster?

A B

Page 21: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Factor 3 – Exposed Surface AreaThe larger the exposed surface area the faster the evaporation rate.

The water will evaporate more quickly from the beaker on the right with the wider opening.

3 inches1 inch

Page 22: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

If each beaker contains 8 ounces of

water, which beaker will evaporate

the quickest?

Page 23: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Part 3

Factors that influence the rate

of Melting or Freezing

Page 24: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Factor 1 - Temperature

Remember the freezing/melting point of water is 0°C or 32°F.

The higher the temperature the faster water will melt. Heat is removed.?????

The lower the temperature the faster water will freeze. Heat is removed.

Page 25: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Factor 2 - Size and Shape

If you have two equal masses of ice – one in a solid block and the other in

smaller pieces - the smaller pieces will melt faster.

Page 26: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Factor 2 - Size and Shape (cont.)

Just like with evaporation, the more surface area exposed to heat the faster

water will melt. Likewise, the more surface area exposed to cold, the faster

water will freeze.

Page 27: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

In which cup will the ice melt

quicker?A B

Page 28: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Factor 3 – Changing the

Composition

During the cold and icy winter, you have probably experienced salt on sidewalks and roads. It is used to melt the ice and snow and keep it from refreezing. The freezing point of water becomes lower as more particles are added until the point where the salt stops dissolving.

Page 29: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

By adding salt to icy roads, you change the freezing/melting from 0°C to

point to -9°C.

Page 30: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Review – Four Factors that influence the

rate of Melting or Freezing

Factor 1 – Temperature (The hotter the air temperature the faster ice melts;

the colder the air temperature faster water freezes.)

Factor 2 - Size and Shape (Larger pieces of ice melt more slowly than an

equal mass of smaller pieces.)

Page 31: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Factor 3 – Changing the Composition (Mixing water with other compounds

such as salt will influence the melting/freezing point.)

Page 32: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Practice

Answer the following questions about factors that influence

the rate at which different types of material

freeze, melt, or evaporate.

Page 33: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Falling temperatures can affect

the water cycle by ______.

a) creating larger raindrops

b) changing precipitation from rain to snow

c) creating smaller raindrops

d) changing the path of water runoff

Page 34: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

How does adding salt to water

affect the temperature?

a) The melting point increases to a higher temperature.

b) The freezing point increases to a higher temperature.

c) Salt does not affect the temperature of water.

d) The freezing point decreases to a lower temperature.

Page 35: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

You are going camping for three days. You need to buy ice

that will keep your ice chest cool for the entire 3 day trip.

Which would be the best ice to buy?

a) one large

block of

ice

b) many small

cubes

c) crushed

ice

d) brightly

colored

cubes

Page 36: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

At which of the following ground temperatures will the

puddle evaporate the fastest?

a) 50°C b) 15°C

c) 29°C d) 87°C

Page 37: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Your little sister forgot to turn off the water in the bathroom sink. The

water overflowed and soaked the carpet. You want to dry the carpet

out before your mother gets home. At which level should you turn on

the fan?

a) low b) high

c) medium d) The carpet would dry

out faster without a fan.

Page 38: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Students are investigating whether wind

affects the rate at which the sponge will dry.

Which experiment is best to use in answering their question?a) b)

c) d)

Page 39: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Each of the following containers hold exactly10

ounces of water. From which container will water

evaporate the fastest?

a) b)

c) d)

Page 40: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Which letter represents

evaporation?

Page 41: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

At which temperature will the icicles melt the

quickest?

a) 50°C b) 15°C

c) 29°C d) 87°C

Page 42: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,
Page 43: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,
Page 44: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Water State Change Graphs

This will be on your FME quiz

Graphs show how water changes at different temperatures

Page 45: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,
Page 46: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

What does the previous graph show

us?

Energy Added Graph

Which number location represents the location of melting?

1

2

3

4

Page 47: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Answer

1

Why location 1?

Reason: Location 1 is just above the “solid” line. The temperature is above

freezing (0 degress Celsius). This is when melting will begin.

Page 48: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,
Page 49: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

What does the previous graph show

us?

Energy Removed

Which number represents the freezing point?

1

2

3

4

Page 50: (solid) (liquid) Evaporation Study - Williamson County … · Evaporation- liquids gain heat and change into gases 4. ... the rate at which different types of material freeze, melt,

Answer

4

Why? This is when freezing begins. 0 degrees Celsius

Energy is being removed