uses of water washing, bathing, showering washing, bathing, showering flushing the toilet flushing...
TRANSCRIPT
Uses of WaterUses of Water
• Washing, bathing, showeringWashing, bathing, showering
• Flushing the toiletFlushing the toilet
• Brushing our teethBrushing our teeth
• Preparing, washing, cooking foodPreparing, washing, cooking food
• DrinkingDrinking
• Washing dishes and clothesWashing dishes and clothes
• CleaningCleaning
• Watering plants and lawnWatering plants and lawn
Why Water?Why Water?
• Water makes all life possible and Water makes all life possible and connects all living things through connects all living things through time.time.
Water…HWater…H2200
• Water is in never-ending cycle being Water is in never-ending cycle being reused.reused.
• The water in a cave today is the water The water in a cave today is the water that the dinosaurs drank, that the that the dinosaurs drank, that the ancient Egyptians used, and that you ancient Egyptians used, and that you will use for dinner when you are 80.will use for dinner when you are 80.
And More Facts…And More Facts…
• 75% of the earth’s surface is covered by 75% of the earth’s surface is covered by waterwater
• One half of the world’s fresh water is in One half of the world’s fresh water is in CanadaCanada
• 75% of the human body is water75% of the human body is water
• Humans require 3 L of water each dayHumans require 3 L of water each day
• 82% of blood is water82% of blood is water
• 40% of household water is flushed40% of household water is flushed
• Jellyfish and cucumber are both 95% waterJellyfish and cucumber are both 95% water
Water and States of MatterWater and States of Matter
• Water is the only substance on Earth Water is the only substance on Earth that naturally exists in all three that naturally exists in all three states of matter:states of matter:– SOLIDSOLID– LIQUIDLIQUID– GASGAS
The Earth has a limited amount of water. That water keeps going around and around in what we call the “Water Cycle”. The cycle is made up of a few main parts:-Evaporation-Condensation-Precipitation-Collection
Water CycleWater Cycle
•Define the following terms:Define the following terms:
– Evaporation is the process of…Evaporation is the process of…– Condensation is the process Condensation is the process
of…of…– Precipitation is a process of…Precipitation is a process of…
EvaporationEvaporation
• Evaporation is the process by which Evaporation is the process by which water is converted from its liquid water is converted from its liquid form to its vapor form form to its vapor form
• Then transferred from land and water Then transferred from land and water to the atmosphere. to the atmosphere.
CondensationCondensation
- Condensation is the Condensation is the oppositeopposite of of evaporation. evaporation.
- It takes place when water vapor in It takes place when water vapor in the air condenses from a gas, back the air condenses from a gas, back into a liquid form. into a liquid form.
PrecipitationPrecipitation
Precipitation takes place when water Precipitation takes place when water droplets are heavy enough to fall back droplets are heavy enough to fall back to the surface of the Earth. to the surface of the Earth. Precipitation may fall in the form of Precipitation may fall in the form of rain, sleet, hail or snow.rain, sleet, hail or snow.
A typical household wellA typical household well
The Water Table
The Water Table
The water table rises and falls according to the season of the year and the amount of rain and snow melt that occurs.
It is typically higher in early spring and lower in late summer.
Heavy rainfall or drought conditions may cause changes in the typical pattern, however.
Soil InfiltrationSoil Infiltration
• 3 main types of soil. Each have 3 main types of soil. Each have different rates of water infiltration.different rates of water infiltration.
• It is possible to have a mixture of the It is possible to have a mixture of the types of soil present in a sample. types of soil present in a sample.
Soil InfiltrationSoil Infiltration
How can soil type affect our ground How can soil type affect our ground water?water?
- Surface Water?- Surface Water?
- Our wells?- Our wells?
- Contamination? - Contamination?
Soil InfiltrationSoil Infiltration
• Sandy soils Sandy soils - have larger soil - have larger soil particles that allow them to drain particles that allow them to drain well. They also dry out more quickly well. They also dry out more quickly and tend to leach out their nutrients.and tend to leach out their nutrients.
Soil InfiltrationSoil Infiltration
• Clay soils Clay soils - have smaller soil - have smaller soil particles that retain water and soil particles that retain water and soil nutrients better. They also tend to nutrients better. They also tend to drain more slowly, which can create drain more slowly, which can create problemsproblems
Soil InfiltrationSoil Infiltration
• Loam soils Loam soils – have a balance of – have a balance of sand, clay and intermediate size (silt) sand, clay and intermediate size (silt) particles. They are best for particles. They are best for retaining water and nutrients – in retaining water and nutrients – in fact, they are ideal soils.fact, they are ideal soils.
What kind of soil it is?What kind of soil it is?Bottle Soil
Type
Location it was taken
from
Good or Bad
Infiltration
Our Soil TestOur Soil Test
• Create an observation chart Create an observation chart
• Add water to your soil type, shake for Add water to your soil type, shake for 1 minute. 1 minute.
• Allow soil and water mixture to begin Allow soil and water mixture to begin settlingsettling
• Make observations while it is settlingMake observations while it is settling
Organic Material
Water
Clay
Sand
Questions to AnswerQuestions to Answer1. Why is there a water cycle? If there wasn’t 1. Why is there a water cycle? If there wasn’t a water cycle, what would happen?a water cycle, what would happen?
2. What are the three forms of solid water?2. What are the three forms of solid water?
3. What is the name for water when it is a 3. What is the name for water when it is a gas?gas?
4. What is drought? How is it related to the 4. What is drought? How is it related to the water cycle?water cycle?
5. List five ways your family used water this 5. List five ways your family used water this afternoon/evening. afternoon/evening.