Water can have three states

Transcription

1 Water Cycle

2 Goals 1. Know the states of water and how / why they change from one state to another 2. Describe the Water Cycle using specific and precise vocabulary when describing each part of the Water Cycle 3. Draw the water cycle, labeling each part with precise vocabulary 4. Explain how salty / dirty / clean water changes as it cycles through the Water Cycle 5. Explain how clouds play a part of the water cycle

3 Goal: Know the states of water and how / why they change from one state to another Water can have three states Solid Liquid Gas Water Vapor Humidity / Steam

4 States of Water Water can easily change from one state into the other Liquid to Solid - take away heat Begins to Freeze at 0 o Celsius Begins to Freeze 32 o Fahrenheit Any temperature less than 0 o C or 32 o F Solid to Liquid add heat Begins to Melts at > 0 o C or 32 o F

5 States of Water Water can easily change from one state into the other Liquid to Gas add more heat Begins to Boils, Steams and Evaporates at 100 o Celsius or 212 o Fahrenheit And temperatures great than 100 o Celsius or 212 o Fahrenheit Gas to Liquid take away heat Condenses at < 100 o C or 212 o F

6 Other: States of Water Water can easily change from one state into the other Liquid to Solid - take away heat Solid to Liquid add heat Liquid to Gas add more heat Gas to Liquid take away heat Solid to Gas (Sublimation) add more heat Gas to Solid (Sublimation) take away heat

7 Water Molecule H Hydrogen H Hydrogen O Oxygen Water is made up of 2 hydrogen molecules and 1 oxygen molecules

8 Water particles are constantly moving. Solids They are tightly packed in Liquids Less ordered and packed Gas Free flowing and loose Pictures from:

9 100 o Celsius = 212 o Fahrenheit C = (5 * (F-32)) 9 F = ((9 * C) 5) o Celsius = 32 o Fahrenheit

10 Water is Everywhere Because of the three states, water exists everywhere on earth Some places water exists are: Oceans, Seas, Rivers, Streams, and Lakes Underwater water tables Ice Caps, Glaciers Atmosphere

11 Water Cycle (Hydrological Cycle) This is the name we have given the process that water goes through on Earth This cycle is never-ending and all processes are going on all the time We will give each process a name, based on the main actions taken place in that process.

12 Water Cycle: What is it. The water cycle is the process by which water travels from the Earth's surface to the atmosphere and then back to the ground again. It is a constant process with the same water going through the cycle over and over again.

13 Evaporation The Sun provides heat to the earth. Without the heat from the sun, this process could not happen This heat causes Evaporation. process where liquid turns into gas Water on the earth turns into water vapor and is released into the atmosphere Trees and plants also release tiny bits of water this process is called Transpiration

14 Condensation As the water vapor rises in the atmosphere, it cools and condenses This process is known as condensation. forms clouds Water vapor changes states and sticks together Changes back to liquid form As the drops get bigger.

15 Precipitation Water vapors that have condensed are formed into clouds which in turn will produce rain or snow As many water vapors gather together into clouds, they become heavy. The heavier the condensed collected water vapor, the sooner it will returns to the Earth's surface as water Temperature of the air determines whether the precipitation will be rain, snow, sleet, hail etc.

16 Types of Precipitation Rain Liquid state of water Temperatures in the atmosphere are between 0 o C 100 o C / 32 o F 212 o F Types Mist Drizzle Showers Thunderstorms Torrential When Warmer weather Most often in spring, then summer. Less in fall & winter

17 ictures from: ttp://2.bp.blogspot.com/_juxrfpsr_-a/sakxe0kdoki/aaaaaaaaaps/65r26ua7s2s/s400/snow2.jpg Sleet Types of Precipitation Solid state of water; mixture of snow and freezing rain Snow that melts as it falls and then freezes again When Colder weather late fall and winter

18 ictures from: ttp://2.bp.blogspot.com/_juxrfpsr_-a/sakxe0kdoki/aaaaaaaaaps/65r26ua7s2s/s400/snow2.jpg Hail Types of Precipitation Solid state of water; pellets of ice Formed in thunderclouds - water vapor condenses into liquid, freezes; collects more liquid, which freeze; thus getting bigger Hail Colder weather late fall and winter In Georgia, we see it in colder weather, but most often in the spring colder air higher in the atmosphere causes ice balls to form and it falls to the earth as hail

19 ictures from: Windows_7_-_Morning_dew.htm ttp://seawayblog.blogspot.com/2008/03/insects-in-morning-dew.html Types of Precipitation Snow Solid state of water: sublimation of water vapor (gas) turns directly into solid (snow); ice crystals Produced high in the atmosphere and the temperature holds steady to stay as snow as it falls When Colder weather winter

20 Dew Condensation Example NOT a type of Precipitation, but example of condensation on the round moisture condensed from the atmosphere, esp. at night, and deposited in the form of small drops upon any cool surface - this is a type of precipitation When Most often every morning cooler days ictures from: Windows_7_-_Morning_dew.htm ttp://seawayblog.blogspot.com/2008/03/insects-in-morning-dew.html Photo by Martin Amin

21 Run Off / (Collection) Storage Precipitation flows into: Ground water Streams, rivers, etc. Ponds, lakes, seas, and oceans Evaporation occurs as the sun heats up the earth

22 THE WATER CYCLE 3. Rain water falls to form rivers. - Precipitation Rivers flow into the sea 2 Plants give off water: Transpiration 2. Water vapour condenses to form clouds Water vapour is carried up into the air. 1. Water evaporates 1 1

23 A THE WATER CYCLE A. SNOW AND ICE ON MOUNTAIN TOPS MELT AND FLOW INTO RIVERS B. RESERVOIRS ARE MADE TO STORE WATER FOR OUR USE B D C C. WATER FROM RESERVOIRS IS CLEANED AT WATER WORKS AND PUMPED TO OUR HOUSES D. WASTE WATER FROM OUR HOUSES IS CLEANED AT THE SEWAGE WORKS AND PUMPED BACK INTO THE SEA

24 Electrify your Brain 1. What is the correct order of the Water Cycle? A. Condensation, Evaporation, Run off, Storage, Precipitation B. Run off, Storage, Evaporation, Condensation, Precipitation C. Precipitation, Condensation, Evaporation, Run off, Storage D. Evaporation, Run off, Precipitation, Storage, Condensation 2. Which process forms Clouds? A. Evaporation B. Condensation C. Precipitation D. Storage

25 Electrify your Brain 3. Which process is most closely related to snow? A. Evaporation B. Condensation C. Precipitation D. Storage 4. What causes evaporation? A. The oceans B. Rain C. Sun D. The atmosphere

26 Water Cycle Bracelet

27 Water Cycle Boogie sung to the tune of Skip to my Lou Sun ashining from its birth, Dries the water, dries the earth. A YELLOW bead shows its worth, Water cycle boogie. Evaporation, water s gone, To a vapor, won t take long. Choose a CLEAR bead, can t go wrong, Water cycle boogie. Clouds are forming drop by drop. Vapor moving, will not stop. WHITE bead shows us what s on top. Water cycle boogie. Condensation, water s here No more vapor, give a cheer. A LIGHT BLUE bead, like a tear, Water cycle boogie. Precipitation, rain and snow, Shows us water on the go. A DARK BLUE bead, don t you know, Water cycle boogie. See the water moving fast, Runoff on the ground at last. BROWN bead also joins the cast, Water cycle boogie. Transpiration from a tree. Water vapor you can t see. GREEN bead shows it all to me. Water cycle boogie.

28 Sources Cloud Information Cloud Pictures: pt