1. Water Conservation and Water Cycle

2. 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.

3. 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.

4. How Do People Use Water?

5. Humans use water for household purposes, agriculture, industry, transportation, and recreation. Humans use water for household purposes, agriculture, industry, transportation, and recreation. Irrigation is the process of supplying water to areas for growing crops Irrigation is the process of supplying water to areas for growing crops Industry – to make products, cool off machines Industry – to make products, cool off machines Transportation – travel upon the oceans, lakes and rivers Transportation – travel upon the oceans, lakes and rivers Recreation – exercise and sports Recreation – exercise and sports

6. Water and Living Things Water is important for living things to grow, reproduce and carry on other essential processes. Water is important for living things to grow, reproduce and carry on other essential processes. Photosynthesis – plants use water, carbon dioxide and sunlight to make their own food Photosynthesis – plants use water, carbon dioxide and sunlight to make their own food Habitat – place an organism lives and provides the things it needs to survive Habitat – place an organism lives and provides the things it needs to survive

7. Water Cycle

8. The Water Cycle 1 In the water cycle, water moves from bodies of water, land, and living things on Earth’s surface, up to the atmosphere, and then back to Earth’s surface. In the water cycle, water moves from bodies of water, land, and living things on Earth’s surface, up to the atmosphere, and then back to Earth’s surface. Steps for the water cycle are: evaporation, condensation, and precipitation Steps for the water cycle are: evaporation, condensation, and precipitation

10. The Water cycle

11. Water Cycle Vocabulary Evaporation – the process by which liquid water on the surface change to a gas Evaporation – the process by which liquid water on the surface change to a gas –Water vapor also enters the air from plants. This is called transpiration.

12. Water Cycle Vocabulary Condensation – process by which gas molecules change into a liquid. This process forms clouds Condensation – process by which gas molecules change into a liquid. This process forms clouds

13. Water Cycle Vocabulary Precipitation – process in which clouds become too heavy to hold the water droplets, and the droplets fall to the Earth’s surface as rain, sleet, snow or hail Precipitation – process in which clouds become too heavy to hold the water droplets, and the droplets fall to the Earth’s surface as rain, sleet, snow or hail

15. Transpiration: : the process by which plants lose water out of their leaves and into the air Collection- When water collects together to form a body of water. Lakes, puddles, oceans, etc.

16. Transpiration

19. Water Cycle Vocabulary Clouds: condensed water made Clouds: condensed water made up of water droplets and tiny dust particles tiny dust particles

20. Percolation/infiltration: the downward movement of absorbed precipitation by the soil, which eventually collects as groundwater Percolation/infiltration: the downward movement of absorbed precipitation by the soil, which eventually collects as groundwater Runoff: water that flows over the surface of land Runoff: water that flows over the surface of land

21. Runoff

22. Runoff

23. Water Cycle Vocabulary Groundwater: water that collect above the bedrock layer and moves like an underground river Groundwater: water that collect above the bedrock layer and moves like an underground river

24. Water Cycle http://www.epa.gov/safewate r/kids/flash/flash_watercycle. html http://www.epa.gov/safewate r/kids/flash/flash_watercycle. html

27. The Water Cycle Very little water is ever lost on the Earth. Very little water is ever lost on the Earth. Water is naturally recycled through a process known as the water cycle Water is naturally recycled through a process known as the water cycle This cycle is driven by energy from the sun. This cycle is driven by energy from the sun. Most evaporated water comes from oceans, and most precipitation falls back into the oceans Most evaporated water comes from oceans, and most precipitation falls back into the oceans

28. The Water Cycle 2 Energy from the sun causes the water particles to move faster and escape into the air as water vapor. Energy from the sun causes the water particles to move faster and escape into the air as water vapor. The sun heats up water, turning the water into gaseous water vapor, which rises into the air. The sun heats up water, turning the water into gaseous water vapor, which rises into the air.

29. How are Clouds formed? 1. water vapor loses energy as it rises into the air and cools down. 2. When water vapor cools down, they condense (comes closer together to form liquid water droplets). 3. These droplets clump together around tiny dust particles, forming clouds. 4. When the clouds become heavy enough, they can no longer hold enough water, and it rains (precipitation).

31. Water Some groundwater finds its way into oceans. Some groundwater finds its way into oceans. Water on the surface is warmed again by the sun and will evaporate. So will water in the soil. Water on the surface is warmed again by the sun and will evaporate. So will water in the soil. Water vapor also enters the air from plants. This is called transpiration. Water vapor also enters the air from plants. This is called transpiration. This keeps the water cycle going. This keeps the water cycle going.

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