Water Conservation and Water Cycle

Water Conservation Tips As you wash your hands, turn the water

off while you lather. Avoid recreational water toys that involve

a constant flow of water. Turn off the water while washing your

hair. Be a leak detective: check all hoses,

faucets, and connectors regularly for leaks.

When the kids want to cool off, use the sprinkler on an area of your lawn that

needs water the most. Water you plants early in the morning, so

water does not evaporate as quickly. At home, or while staying in a hotel, reuse

your towels.

Water Conservation Tips Take shorter showers.

Turn off running water while brushing your teeth. Fill a pitcher with water and put it in the fridge, so

you are not turning on the faucet every time you want a drink.

Don’t overfill the pool. Lower water levels will reduce water loss due to splashing.

Don’t hose off your driveway, use a broom instead. When you give your pet freshwater, don’t throw

the old water down the drain. Use it to water plants and shrubs.

Wash your fruits and vegetables in a pan of water instead of running tap water.

Don’t let the water run constantly while washing or rinsing dishes.

Place a layer of mulch around trees and plants to retain water.

 

How Do People Use Water?How Do People Use Water?

How Do People Use Water?How Do People Use Water?• Humans use water for household Humans use water for household

purposes, agriculture, industry, purposes, agriculture, industry, transportation, and recreation.transportation, and recreation.

• Irrigation is the process of supplying Irrigation is the process of supplying water to areas for growing cropswater to areas for growing crops

• Industry – to make products, cool off Industry – to make products, cool off machinesmachines

• Transportation – travel upon the oceans, Transportation – travel upon the oceans, lakes and riverslakes and rivers

• Recreation – exercise and sportsRecreation – exercise and sports

Water and Living ThingsWater and Living Things

• Water is important for living things to Water is important for living things to grow, reproduce and carry on other grow, reproduce and carry on other essential processes.essential processes.

• Photosynthesis – plants use water, Photosynthesis – plants use water, carbon dioxide and sunlight to make carbon dioxide and sunlight to make their own foodtheir own food

• Habitat – place an organism lives and Habitat – place an organism lives and provides the things it needs to surviveprovides the things it needs to survive

Water Water CycleCycle

The Water Cycle 1The Water Cycle 1

•In the water cycle, water In the water cycle, water moves from bodies of water, moves from bodies of water, land, and living things on land, and living things on Earth’s surface, up to the Earth’s surface, up to the atmosphere, and then back to atmosphere, and then back to Earth’s surface.Earth’s surface.

•Steps for the water cycle are: Steps for the water cycle are: evaporation, condensation, evaporation, condensation, and precipitationand precipitation

The Water cycleThe Water cycle

Water Cycle VocabularyWater Cycle Vocabulary• Evaporation Evaporation – the process by which – the process by which

liquid water on the surface change liquid water on the surface change to a gasto a gas– Water vapor also enters the air from Water vapor also enters the air from

plants. This is called plants. This is called transpirationtranspiration..

Water Cycle VocabularyWater Cycle Vocabulary• Condensation Condensation – process by which gas – process by which gas

molecules change into a liquid. This molecules change into a liquid. This process forms cloudsprocess forms clouds

Water Cycle VocabularyWater Cycle Vocabulary• Precipitation – Precipitation – process in which process in which

clouds become too heavy to hold the clouds become too heavy to hold the water droplets, and the droplets fall water droplets, and the droplets fall to the Earth’s surface as rain, sleet, to the Earth’s surface as rain, sleet, snow or hailsnow or hail

TranspirationTranspiration: : : : the process by the process by which plants which plants lose water out of lose water out of their leaves and their leaves and into the airinto the air

Collection-Collection- When When water collects water collects together to form together to form a body of water. a body of water. Lakes, puddles, Lakes, puddles, oceans, etc. oceans, etc.

Transpiration

Water Cycle VocabularyWater Cycle Vocabulary• CloudsClouds: condensed water made : condensed water made

up of water droplets andup of water droplets and

tiny dust particlestiny dust particles

• Percolation/Percolation/infiltrationinfiltration: the : the downward movement downward movement of absorbed of absorbed precipitation by the precipitation by the soil, which eventually soil, which eventually collects as collects as groundwatergroundwater

• RunoffRunoff: water that : water that flows over the flows over the surface of land surface of land

RunoffRunoff

RunoffRunoff

Water Cycle VocabularyWater Cycle Vocabulary• GroundwaterGroundwater: water that collect : water that collect

above the bedrock layer and above the bedrock layer and moves like an underground rivermoves like an underground river

Water CycleWater Cycle

•http://www.epa.gov/safewater/kids/flash/flash_watercycle.html

The Water CycleThe Water Cycle•Very little water is ever lost on the Very little water is ever lost on the

Earth.Earth.

•Water is naturally recycled through Water is naturally recycled through a process known as the water cyclea process known as the water cycle

•This cycle is driven by energy from This cycle is driven by energy from the sun.the sun.

•Most evaporated water comes from Most evaporated water comes from oceans, and most precipitation falls oceans, and most precipitation falls back into the oceansback into the oceans

The Water Cycle 2The Water Cycle 2•Energy from the sun Energy from the sun causescauses the the

water particleswater particles to to move fastermove faster and escape into the air as and escape into the air as water water vaporvapor..

• The sun heats up water, turning the The sun heats up water, turning the water into gaseous water vapor, water into gaseous water vapor, which rises into the air. which rises into the air.

How are Clouds formed?How are Clouds formed?1.1.water vapor loses energy as it rises into water vapor loses energy as it rises into

the air and cools down.the air and cools down.

2.2.When water vapor cools down, they When water vapor cools down, they condense (comes closer together to form condense (comes closer together to form liquid water droplets).liquid water droplets).

3.3.These droplets clump together around These droplets clump together around tiny dust particles, forming clouds.tiny dust particles, forming clouds.

4.4.When the clouds become heavy enough, When the clouds become heavy enough, they can no longer hold enough water, they can no longer hold enough water, and it rains (precipitation).and it rains (precipitation).

WaterWater• Some Some groundwatergroundwater finds its way into oceans. finds its way into oceans.

• Water on the surface is warmed again by the Water on the surface is warmed again by the sun and will evaporate. So will water in the sun and will evaporate. So will water in the soil.soil.

• Water vapor also enters the air from plants. Water vapor also enters the air from plants.

This is called This is called transpirationtranspiration..

• This keeps the water cycle going.This keeps the water cycle going.

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