mrscienceut.netmrscienceut.net/2018 Water Cycle OER.docx · Web viewSnow and ice slowly melt over time to become liquid water, which provides a steady flow of fresh water to streams,

6.3.1 – Water CycleIn your 6th Grade Science book, read pgs. 74-78 and fill in the blanks below.

Explore This Phenomenon

Pour a small amount of water onto a table in a warm room or on the sidewalk outside. If you continue to observe the water from time to time, you will find that eventually all the water you poured out will be gone. If you pour water onto the sidewalk when the Sun is shining, the water is gone very quickly. Why does the water disappear? Where does the water go?Explore This PhenomenonExplain how the water disappeared.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Because of the unique properties of water, water molecules can ______________________________ throughalmost ____________________________________ on Earth. Where will those water molecules go next?Water continuously moves between…

________________________________________________________________________________________________________________________________________________________________________

________________________________________________________________________________________________________________________________________________________________________

The water cycle does not have a _______________________ or _______________________ point. 1

A small amount of liquid water on the surface of a

table.

24 hour later, the water is gone.

The recycling process involves… _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ Liquid water molecules reach the surface, they can move into the

_______________________ or flow along the _______________________. Most precipitation that occurs over land is not absorbed by the soil. This water

remains on the surface and is called _______________________. This collects in _______________________ and _______________________ and eventually flows back into the _______________________.Water also moves through ________________________________________________________________________ soak up large amounts of water through their roots. The water then moves up the plant and evaporates from the leaves in a process called __________________________. The process of transpiration, like ____________________, returns water back into the ____________________.Forces that Drive the Water CycleSolar EnergyThe ________________ provides the energy that drives the water cycle. For water to evaporate it requires an input of ________________. The Sun directly impacts the water cycle by supplying the energy needed for ________________. Most of the energy that objects on Earth’s surface have comes either directly or indirectly from the ________________.Density and GravityWhen a parcel of air containing gaseous water molecules is heated by the Sun, it will ________________. This decreases the ________________ of this particular parcel of air, so that it weighs less. It will then be pushed upward by ________________, ________________ air that is pulled downward and underneath it by ________________.

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Energy lost by water molecules in ________________ is acquired by the surrounding air molecules, increasing their motion. This causes the air around the water droplets to expand, ________________ its ________________. This ________________ air within the cloud rises (this upward movement of air is called an updraft). These rising air molecules exert an upward force on the liquid water drops and ice crystals in the cloud and keep them aloft even though they are denser than the air.As cloud droplets collide they merge to form larger drops. If the drops become large enough, the force from the rising air is no longer strong enough and the drops will fall to the ground as rain, snow or hail.Some of the water falling on land will seep into the ground (a process called ________________). Water unable to seep into the ground will move across the surface from higher to lower elevation (from mountains to valleys, etc.)because of ________________ and eventually will flow into ________________ and ________________ andthen into ________________ or the ________________.Earth’s Water ReservoirsWater can be found in many different locations on the Earth. It can be found in oceans, clouds, puddles or living things. Each of these locations is called a ________________.OceansMost of Earth’s water is stored in the oceans. In fact, _____% of the Earth’s water is in this reservoir. Water can remain in the ocean for hundreds or thousands of years. Or it can evaporate in days or hours.AtmosphereWhen water absorbs energy it will change from a liquid to a gas (___________________________). The Sun’s energy can _________________________ water from the ocean surface or from lakes, streams, or puddles on land. Water vapor remains in the atmosphere as a gas until it _________________________ to become tiny droplets of liquid. If it is cold enough, the water molecules can _________________________ and form ice crystals. The droplets (or ice crystals) make up clouds, which are blown about the globe by wind. As water droplets in the clouds collide and grow, they fall from the sky as _________________________. Precipitation can be ______________, ______________, ______________, or ______________. Sometimes precipitation falls back into the ocean and sometimes it falls onto the land surface.

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When water falls from the sky as rain it may enter streams and rivers that ____________________________to lakes and oceans. Water that falls as snow may sit on a mountain for several months. Snow may become ice in a glacier, where it will remain for ____________or ____________of years. Snow and ice slowly melt over time to become liquid water, which provides a steady flow of fresh water to streams, rivers, and lakes. A water droplet falling as rain could also become part of a stream or a lake. At the surface, the water will eventually _____________and reenter the atmosphere.SoilA significant amount of water seeps into the ground. Soil moisture is an important ______________for water (next figure). Water trapped in soil is important for plants to grow.GroundwaterWater may seep through dirt and rock below the soil and then through pores infiltrating the ground to go into Earth’s ___________________ system. Groundwater enters ______________ (which are porous layers of rock that can hold water) that may store fresh water for centuries. Alternatively, the water may come to the surface through springs or find its way back to the oceans. Water can remain in this reservoir for hundreds or even thousands of years.BiospherePlants and animals depend on water to live. Plants and animals are another place water is ______________. Plants take up water from the soil and release large amounts of water vapor into the air through their leaves in ______________. Water can move quickly through this ______________.

Water Cycle Vocabulary Puzzle

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Across

1. Molecules high in the atmosphere where the temperature is cold enough for water molecules in the air to lose energy and become denser. This causes them to change from a gas into many tiny droplets of liquid water.3. Water moving up a plant and evaporates from the leaves.5. Water not absorbed by the soil. This water remains on the surface.6. Water droplets in a cloud increasing in size and become heavier. They eventually fall back to the Earth’s surface.7. Water found in oceans, clouds, puddles or living things.

Down

2. Water molecules on the surface of the ocean absorb energy from the Sun and change from a liquid to gas.4. Water falling on land which seeps into the ground.

5

6.3.1 – Water Cycle – Key

Pour a small amount of water onto a table in a warm room or on the sidewalk outside. If you continue to observe the water from time to time, you will find that eventually all the water you poured out will be gone. If you pour water onto the sidewalk when the Sun is shining, the water is gone very quickly. Why does the water disappear? Where does the water go?

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

In your 6th Grade Science book, read pgs. 74-78 and fill in the blanks below.

Explore This PhenomenonExplain how the water disappeared.

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

Because of the unique properties of water, water molecules can ______________________________ through

almost ____________________________________ on Earth. Where will those water molecules go next?

cycle, anywhere

6

A small amount of liquid water on the surface of a

table.

24 hour later, the water is gone.

Water continuously moves between…

________________________________________________________________________________________________________________________________________________________________________

________________________________________________________________________________________________________________________________________________________________________

living organisms, such as plants; non-living things, such as clouds, rivers, and oceansThe water cycle does not have a _______________________ or _______________________ point.

starting, ending

The recycling process involves…

_______________________________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________

oceans, lakes, other bodies of water, land surfaces. atmosphere Liquid water molecules reach the surface, they can move into the

_______________________ or flow along the _______________________.

ground; surface Most precipitation that occurs over land is not absorbed by the soil. This water

remains on the surface and is called _______________________.

runoffThis collects in _______________________ and _______________________ and

eventually flows back into the _______________________.

streams; rivers; oceanWater also moves through ______________________________________________.

living organisms__________________________ soak up large amounts of water through their roots.

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PlantsThe water then moves up the plant and evaporates from the leaves in a process called

__________________________.

transpiration

The process of transpiration, like ____________________, returns water back into the ____________________.

evaporation; atmosphereForces that Drive the Water CycleSolar EnergyThe ________________ provides the energy that drives the water cycle.

SunFor water to evaporate it requires an input of ________________. The Sun directly impacts the water cycle by supplying the energy needed for ________________. Most of the energy that objects on Earth’s surface have comes either directly or indirectly from the ________________.

energy, evaporation, SunDensity and GravityWhen a parcel of air containing gaseous water molecules is heated by the Sun, it will ________________. This decreases the ________________ of this particular parcel of air, so that it weighs less. It will then be pushed upward by ________________, ________________ air that is pulled downward and underneath it by ________________.

expand; density; colder; denser; gravityEnergy lost by water molecules in ________________ is acquired by the surrounding air molecules, increasing their motion. This causes the air around the water droplets to expand, ________________ its ________________. This ________________ air within the cloud rises (this upward movement of air is called an updraft). These rising air molecules exert an upward force on the liquid water drops and ice crystals in the cloud and keep them aloft even though they are denser than the air.condensation; decreasing; density; heatedAs cloud droplets collide they merge to form larger drops. If the drops become large enough, the force from the rising air is no longer strong enough and the drops will fall to the ground as rain, snow or hail.

8

Some of the water falling on land will seep into the ground (a process called ________________). Water unable to seep into the ground will move across the surface from higher to lower elevation (from mountains to valleys, etc.) because of ________________ and eventually will flow into ________________ and ________________ and then into ________________ or the ________________.infiltration; gravity; streams; rivers; lakes; oceanEarth’s Water ReservoirsWater can be found in many different locations on the Earth. It can be found in oceans, clouds, puddles or living things. Each of these locations is called a ________________.reservoir

OceansMost of Earth’s water is stored in the oceans. In fact, _____% of the Earth’s water is in this reservoir. Water can remain in the ocean for hundreds or thousands of years. Or it can evaporate in days or hours.97AtmosphereWhen water absorbs energy it will change from a liquid to a gas (___________________________). The Sun’s energy can _________________________ water from the ocean surface or from lakes, streams, or puddles on land. Water vapor remains in the atmosphere as a gas until it _________________________ to become tiny droplets of liquid. If it is cold enough, the water molecules can _________________________ and form ice crystals. The droplets (or ice crystals) make up clouds, which are blown about the globe by wind. As water droplets in the clouds collide and grow, they fall from the sky as _________________________. Precipitation can be ______________, ______________, ______________, or ______________. Sometimes precipitation falls back into the ocean and sometimes it falls onto the land surface.

(water vapor); evaporate; condenses; freeze; precipitation; rain; sleet; hail; snow

Streams and LakesWhen water falls from the sky as rain it may enter streams and rivers that ____________________________to lakes and oceans. Water that falls as snow may sit on a mountain for several months. Snow may become ice in a glacier, where it will remain for ____________or ____________of years. Snow and ice slowly melt over time to become

9

liquid water, which provides a steady flow of fresh water to streams, rivers, and lakes. A water droplet falling as rain could also become part of a stream or a lake. At the surface, the water will eventually _____________and reenter the atmosphere.

flow downward; hundreds; thousands; evaporateSoilA significant amount of water seeps into the ground. Soil moisture is an important ______________for water (next figure). Water trapped in soil is important for plants to grow.

reservoirGroundwaterWater may seep through dirt and rock below the soil and then through pores infiltrating the ground to go into Earth’s ___________________ system. Groundwater enters ______________ (which are porous layers of rock that can hold water) that may store fresh water for centuries. Alternatively, the water may come to the surface through springs or find its way back to the oceans. Water can remain in this reservoir for hundreds or even thousands of years.

groundwater; aquifers

BiospherePlants and animals depend on water to live. Plants and animals are another place water is ______________. Plants take up water from the soil and release large amounts of water vapor into the air through their leaves in ______________. Water can move quickly through this ______________.

stored; transpiration; reservoir

10

Explore This Phenomenon

11

Pour a small amount of water onto a table in a warm room or on the sidewalk outside. If you continue to observe the water from time to time, you will find that eventually all the water you poured out will be gone. If you pour water onto the sidewalk when the Sun is shining, the water is gone very quickly. Why does the water disappear? Where does the water go?

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

In your 6th Grade Science book, read pgs. 74-78 and fill in the blanks below.

Explore This PhenomenonExplain how the water disappeared.

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

Because of the unique properties of water, water molecules can ______________________________ through

almost ____________________________________ on Earth. Where will those water molecules go next?

cycle, anywhereWater continuously moves between…

________________________________________________________________________________________________________________________________________________________________________

12

A small amount of liquid water on the surface of a

table.

24 hour later, the water is gone.

A small amount of liquid water on the surface of a table.

________________________________________________________________________________________________________________________________________________________________________

living organisms, such as plants; non-living things, such as clouds, rivers, and oceansThe water cycle does not have a _______________________ or _______________________ point.

starting, ending

The recycling process involves…

_______________________________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________

oceans, lakes, other bodies of water, land surfaces. atmosphere Liquid water molecules reach the surface, they can move into the

_______________________ or flow along the _______________________.

ground; surface Most precipitation that occurs over land is not absorbed by the soil. This water

remains on the surface and is called _______________________.

runoffThis collects in _______________________ and _______________________ and

eventually flows back into the _______________________.

streams; rivers; oceanWater also moves through ______________________________________________.

living organisms__________________________ soak up large amounts of water through their roots.

PlantsThe water then moves up the plant and evaporates from the leaves in a process called

__________________________.

transpirationThe process of transpiration, like ____________________, returns water back into the ____________________.

evaporation; atmosphere

13

Forces that Drive the Water CycleSolar EnergyThe ________________ provides the energy that drives the water cycle.

SunFor water to evaporate it requires an input of ________________. The Sun directly impacts the water cycle by supplying the energy needed for ________________. Most of the energy that objects on Earth’s surface have comes either directly or indirectly from the ________________.

energy, evaporation, SunDensity and GravityWhen a parcel of air containing gaseous water molecules is heated by the Sun, it will ________________. This decreases the ________________ of this particular parcel of air, so that it weighs less. It will then be pushed upward by ________________, ________________ air that is pulled downward and underneath it by ________________.

expand; density; colder; denser; gravityEnergy lost by water molecules in ________________ is acquired by the surrounding air molecules, increasing their motion. This causes the air around the water droplets to expand, ________________ its ________________. This ________________ air within the cloud rises (this upward movement of air is called an updraft). These rising air molecules exert an upward force on the liquid water drops and ice crystals in the cloud and keep them aloft even though they are denser than the air.condensation; decreasing; density; heatedAs cloud droplets collide they merge to form larger drops. If the drops become large enough, the force from the rising air is no longer strong enough and the drops will fall to the ground as rain, snow or hail.

Some of the water falling on land will seep into the ground (a process called ________________). Water unable to seep into the ground will move across the surface from higher to lower elevation (from mountains to valleys, etc.) because of ________________ and eventually will flow into ________________ and ________________ and then into ________________ or the ________________.infiltration; gravity; streams; rivers; lakes; oceanEarth’s Water Reservoirs

14

Water can be found in many different locations on the Earth. It can be found in oceans, clouds, puddles or living things. Each of these locations is called a ________________.reservoir

OceansMost of Earth’s water is stored in the oceans. In fact, _____% of the Earth’s water is in this reservoir. Water can remain in the ocean for hundreds or thousands of years. Or it can evaporate in days or hours.97AtmosphereWhen water absorbs energy it will change from a liquid to a gas (___________________________). The Sun’s energy can _________________________ water from the ocean surface or from lakes, streams, or puddles on land. Water vapor remains in the atmosphere as a gas until it _________________________ to become tiny droplets of liquid. If it is cold enough, the water molecules can _________________________ and form ice crystals. The droplets (or ice crystals) make up clouds, which are blown about the globe by wind. As water droplets in the clouds collide and grow, they fall from the sky as _________________________. Precipitation can be ______________, ______________, ______________, or ______________. Sometimes precipitation falls back into the ocean and sometimes it falls onto the land surface.

(water vapor); evaporate; condenses; freeze; precipitation; rain; sleet; hail; snow

Streams and LakesWhen water falls from the sky as rain it may enter streams and rivers that ____________________________to lakes and oceans. Water that falls as snow may sit on a mountain for several months. Snow may become ice in a glacier, where it will remain for ____________or ____________of years. Snow and ice slowly melt over time to become liquid water, which provides a steady flow of fresh water to streams, rivers, and lakes. A water droplet falling as rain could also become part of a stream or a lake. At the surface, the water will eventually _____________and reenter the atmosphere.

flow downward; hundreds; thousands; evaporateSoilA significant amount of water seeps into the ground. Soil moisture is an important ______________for water (next figure). Water trapped in soil is important for plants to grow.

15

reservoirGroundwaterWater may seep through dirt and rock below the soil and then through pores infiltrating the ground to go into Earth’s ___________________ system. Groundwater enters ______________ (which are porous layers of rock that can hold water) that may store fresh water for centuries. Alternatively, the water may come to the surface through springs or find its way back to the oceans. Water can remain in this reservoir for hundreds or even thousands of years.

groundwater; aquifersBiospherePlants and animals depend on water to live. Plants and animals are another place water is ______________. Plants take up water from the soil and release large amounts of water vapor into the air through their leaves in ______________. Water can move quickly through this ______________.

stored; transpiration; reservoir

16

Water Cycle Vocabulary Puzzle

Across1. Molecules high in the atmosphere where the temperature is cold enough for water molecules in the air to lose energy and become denser. This causes them to change from a gas into many tiny droplets of liquid water.3. Water moving up a plant and evaporates from the leaves.5. Water not absorbed by the soil. This water remains on the surface.6. Water droplets in a cloud increasing in size and become heavier. They eventually fall back to the Earth’s surface.7. Water found in oceans, clouds, puddles or living things.Down2. Water molecules on the surface of the ocean absorb energy from the Sun and change from a liquid to gas.4. Water falling on land which seeps into the ground.

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infiltration Water falling on land will seep into the ground.groundwater Water seeping through dirt and brock below the soil.

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