EVAPORATION is the process of heating water to form a vapour Mª Teresa Villarroya i Font.

Slides:

Advertisements

Similar presentations

To understand the processes involved in the water cycle

Advertisements

 Melting  Evaporation  Freezing  Condensation.

Welcome to... A Game of X’s and O’s

Thermometers Thermometers measure air temperature. Thermometers work because matter expands when heated. Most thermometers are closed glass tubes containing.

Weather Measurement Tools. Thermometer What? –Measures the air temperature Measurement unit: degrees Celsius (°C) (in Canada) or (°F) in some other areas.

What is the Water Cycle?. The water cycle shows how water is constantly moving!

Water Cycle-we will draw at the end!. Quiz your partner What are the parts of the water cycle that were in the drawing. Can you describe them?

Weather Instruments Unit 11 - Day 1 Notes Have a red book open to page 60.

Physics 1 Revision Lesson 2 Factors affecting cooling and Insulating buildings.

Water Changes: States of Water Created by: Stacey Osborne.

Weather Instruments. The weather forecast that helped you plan activities for this week was probably made by a meteorologist. A meteorologist is a person.

Weather Instruments. Thermometer What does it do? What does it do? It measures the air temperature It measures the air temperature.

Moisture Moisture = Water Vapor (gas) Gets into the atmosphere by: 1.Evaporation = liquid to gas (opposite of condensation) 2.Transpiration = plants release.

Weather Maps and Atmospheric Effects. Fronts Humidity.

DEFINITION Evaporation is when a liquid becomes a gas. When the molecules in a liquid are heated, they move faster. This makes them full of energy and.

Basic Processes TemperatureFreezingMelting Boiling Evaporation Condensation.

Chemistry Department Waid Academy Unit 1 Chemical Reactions.

Changes of State. Is the change of a substance from one physical form to the other All changes of states are physical changes, this means that the identity.

Evaporation, Condensation, & Precipitation. 1. The change from a liquid to a gas. 2. The change from a gas to a liquid. 3. We can use a sling psychrometer.

To know that condensation is the process of gas cooling to form a liquid. Mª Teresa Villarroya I Font CONDENSATION.

Humidity. Remember: Water takes longer to warm and cool because of its high heat capacity. Lots of solar energy is needed to change the state of water!

CHANGES IN STATES OF MATTER HEAT ENERGY ADDED.

© 2009 Marshall Cavendish International (Singapore) Private Limited.

Evaporation. Learning objectives At the end of this presentation the students will be able to: Explain the phenomenon of evaporation State the factors.

EvaporationEvaporationEvaporationEvaporation F. 3A Winnie Chan (6) Lydia Chan (7) Vikki Chan (8) Stephanie Cheung (9) Vivian Chiu (10)

Aseel Samaro Understanding evaporation. Have you ever thought about what happens to the water particles when a puddle is left in the sunshine, or.

The Water Cycle & The phase  ’s of H 2 O. The hydrologic cycle - simplified.

Question 1 Which of these is NOT a stage of the water cycle? A Evaporation B Transpiration C Condensation.

TRUE or FALSE? Air pressure is lower on mountains than in valleys.

Water is made up of molecules. Water changes state (gas, liquid, solid) when it’s molecules are heated or cooled.

2012.  Describe how the particles change as energy is added or taken away  Understand the relationship between particle motion and temperature  One.

Chapter 2 OBSERVING WEATHER AAAAIR PRESSURE: The push of the air in all directions against its surroundings. BBBBAROMETER: A device used to measure.

3.3 Phase Changes What are six common phase changes?

Identify, name and define.. * A measures relative humidity, using the cooling effect of evaporation. Two thermometers are used in a sling psychrometer.

Thermometer Measures the air temperature, when air around the tube heats the liquid, the liquid expands and moves up the tube. A scale then shows what.

Look at all of the slides. Think about what is happening in the pictures?

After a rain,why does the water on the ground dry up?

Liquids Chemistry Mrs. Coyle. Liquids Intermolecular attractions hold molecules of liquids together. Intermolecular attractions hold molecules of liquids.

WATER IN THE ATMOSPHERE Honors Earth science Chapter 16.

And other exciting things.... EVAPORATION Evaporation is when the particles in a liquid heat up, they became less dense and have more energy. This means.

Vapour Pressure - All volatile liquids spontaneously evaporate. When they do the vapour produces a pressure. This pressure depends on temperature. The.

The Water in the Air. First, let’s name the three states of matter. Solid Liquid Gas When we think of water, of what state of matter do we usually think?

Refrigeration What's Refrigerated? What makes up a system?

Chapter 23: Change of Phase Review and Study Guide.

Science Chapter Essential Question: What are some was you can describe matter?

Water Vapor and Humidity D Where does water vapor come from?  When warm air touched cold glass, the air cools and droplets form  Water Vapor 

Weather Measurement Tools. Thermometer What? –Measures the air temperature How? –Heat expands the liquid in the vacuum tube and causes it to “rise”, likewise,

Changes of State Change of state= conversion or a substance from one physical form to another All changes of state are PHYSICAL changes, no changes in.

AIM: How does distillation work?

Weather Instruments Instruments are useful to identify what is happening in the weather. It’s important to know what each of these instruments are called.

States Of Matter K 2.2 Changes of state.

Look at all of the slides

Objectives Humidifying - steam - adiabatic Cooling towers

Bellwork – List the scales of temperature.

Factors Affecting Evaporation

SCIENCE GRADE FOUR – WEATHER

HW2 Book problems: 8.5, 8.25, 8.27, 8.28, 8.22 Additional Design Problem (#5): Due October 7th.

Objectives Indoor Environmental Control Psychometrics.

Look at all of the slides

WARM-UP What causes substances to change states of matter?

Objectives Psychometrics Examples in AHUs.

9.4 Change of phase.

KINETIC MODEL OF MATTER

The water cycle.

Presentation transcript:

EVAPORATION is the process of heating water to form a vapour Mª Teresa Villarroya i Font

WHAT IS EVAPORATION? Evaporation is a process, a change. Evaporation is a process, a change. It’s the heating process that changes It’s the heating process that changes liquid into a gas.

RATES OF EVAPORATION Wind :the higher the wind speed, the more evaporation. Wind :the higher the wind speed, the more evaporation. Temperature: the higher the temperature, the more evaporation. Temperature: the higher the temperature, the more evaporation. Humidity: the lower the humidity, the more evaporation. Humidity: the lower the humidity, the more evaporation. Area: the bigger the area, the more evaporation Area: the bigger the area, the more evaporation

LOOK AT THE CLOTHES ON THE WASHING LINE. What has happened? What has happened? Why has it happened? Why has it happened? How do we call the process? How do we call the process?

LOOK AT THE WATER INTO THE PAN. What has happened? What has happened? Why has it happened? Why has it happened? What do we call the process? What do we call the process? Where is the water, now? Where is the water, now?

LOOK AT THE WOMAN. What has happened? What has happened? Why has it happened? Why has it happened? What do we call the process? What do we call the process? Water has turn into ……. Water has turn into ……. Liquid has changed into a …… Liquid has changed into a ……

LOOK AT THE PEOPLE Are the conditions good or bad for evaporation? Are the conditions good or bad for evaporation? Why? Why?