Year 4 Homework
Date set: 1.12.17
Date Due in:
8.12.1
Reading (every day)
Please write in your reading diary
when you have read.
Maths (20mins):
Our topic this week is perimeter. Maths
homework will be posted on the Mathletics website. Please ask your teacher for
a paper copy if you need one or if you have trouble logging on. Please also
practise your times tables up to 12 x 12.
Blogging (20minutes):
We would like you to write a short
explanation about The Water Cycle:
Try to include where the water is
changing from one state to another e.g. liquid to gas.
Try to explain why the Water Cycle is
so important to life on Earth.
Where does water become a solid?
Where does this fit into the Water
cycle?
Christmas Concert:
You should now know all of the words
to the songs and your lines off by heart. If you do not, please make sure that
you know them by Monday 4th December as we will practice without
them.
Spellings (20mins) should be practised for a short time each day, using the
words given in sentences.
You need to:
• look at each word
• say the word
• copy the word in first space
• cover the words and try to write it
from memory
• check to see if they are right
Group 1
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Copy and cover
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Write and check
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Write again
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mouse
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mice
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loaf
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loaves
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life
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lives
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foot
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feet
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wife
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wives
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Group 2
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Copy and cover
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Write and check
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Write again
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goose
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geese
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thief
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thieves
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person
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people
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knife
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knives
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scarf
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scarves
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woman
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women
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The water cycleis importent to all life on earth for many reasons. When the sun shines, the water from ocean or lake evaporates due to heat form the sun. When ie evaporates it turns into water rapor and goes up into the atmosphere. This water rapor and gets together with other rapor and turns into a cloud. When clauds get devise they drop the water back to the earth is some frm of precipitation like: rain, snow hail or sleet. When the water falls back down to the earth they finde their way on the ground into strens and rivers. Again this water will evaporate and the whole cycle start again. All living organisms require water. Plants, animals,humane. All of these proces sustain life and create the ecosystems around us. To make water change from one state to another we must change its temperature. To do that we need to heat it up or cool it down.
ReplyDeleteThe water cycle.
ReplyDeleteThe water cycle starts with any drop of water that water will soon evaporate. Once it has evaporated the water vaper will condense with other water vaper forming a water droplet. It will happen again with the same water droplet this will form a cloud. The cloud will contain too much water droplets then the cloud will burst making precipitation. This will happen again infinite times.
1.Evaporation is the proses by witch water changes from liquid to a gas or Vapor . Evaporation is the primary pathway that water moves from the liquid state back into the water cycle as atmospheric water vapor.
ReplyDelete2. The water cycle is important because water is perhaps the most important componet of any ecosystem. All living organisms need water to grow and survive. In an ecosystem water cycles through the atmosphere soil, rivers, lakes and oceans. Some water is stored deep in the earth.
3. Water comes to solid when you freeze it in the freezer.
4 Understanding how the cycle operate is key to understanding how rivers work. The water cycle is known as the hydrological cycle. It is called cycle because water continley moves around the system.
Hoe Does The Water Cycle Work?
ReplyDeleteThe water cycle starts in a long lake were it leads into the sea. Next the water evaporates into gas, then it forms a cloud. After that the wind pushes the cloud to another area. Then the clouds poor out with rain this happens because the cloud is full of water so it has to be released.
The water cycle starts with a run-off the water either goes in the ground and later on makes a spring or it goes in a river or a lake. Later on the water gets heated by the sounds and turns into a gas. While it's a gas in the sky the wind moves it into the clouds. When it's in the cloud it gets cooled and then the whole process restarts.
ReplyDeleteThe water cycle, also known as the hydrological cycle or the hydrologic cycle, describes the continuous movement of water on, above and below the surface of the Earth. The mass of water on Earth remains fairly constant over time but the partitioning of the water into the major reservoirs of ice, fresh water, saline water and atmospheric water is variable depending on a wide range of climatic variables. The water moves from one reservoir to another, such as from river to ocean, or from the ocean to the atmosphere, by the physical processes of evaporation, condensation, precipitation, infiltration, surface runoff, and subsurface flow. In doing so, the water goes through different forms: liquid, solid (ice) and vapor.
ReplyDeleteThe water cycle involves the exchange of energy, which leads to temperature changes. For instance, when water evaporates, it takes up energy from its surroundings and cools the environment. When it condenses, it releases energy and warms the environment. These heat exchanges influence climate.
The evaporative phase of the cycle purifies water which then replenishes the land with freshwater. The flow of liquid water and ice transports minerals across the globe. It is also involved in reshaping the geological features of the Earth, through processes including erosion and sedimentation. The water cycle is also essential for the maintenance of most life and ecosystems on the planet.
Snow melt
The runoff produced by melting snow.
Runoff
The variety of ways by which water moves across the land. This includes both surface runoff and channel runoff. As it flows, the water may seep into the ground, evaporate into the air, become stored in lakes or reservoirs, or be extracted for agricultural or other human uses.
Infiltration
The flow of water from the ground surface into the ground. Once infiltrated, the water becomes soil moisture or groundwater.A recent global study using water stable isotopes, however, shows that not all soil moisture is equally available for groundwater recharge or for plant transpiration.
Subsurface flow
The flow of water underground, in the vadose zone and aquifers. Subsurface water may return to the surface (e.g. as a spring or by being pumped) or eventually seep into the oceans. Water returns to the land surface at lower elevation than where it infiltrated, under the force of gravity or gravity induced pressures. Groundwater tends to move slowly and is replenished slowly, so it can remain in aquifers for thousands of years.
KSENIA
The water cycle.
ReplyDeleteThe water cycle is a very important cycle. We couldn’t have survived without it. It is important because it gives all the water supplies that are needed in daily life. Our body is made up of 80% of water, therefore it is a very important for us. We also use water to have a bath so we stay hygienic. Water is used by industries when they manufacture products. Plants and animals also need water to survive.
First, the water cycle starts in the sea, ocean or lake. Next, the water evaporates into the sky by the sun’s heat. As the water vapours rises up in the air, the water vapours start to cool down because the temperature drops and forms water droplets. This process is called condensation. All the water droplets join together to form a cloud. As these water droplets become heavier and bigger, they fall down on earth in the form of rain, snow, sleet or hail. This process is known as precipitation. Sometimes if the temperature is really cold, the water droplets turn into ice crystals, they stick to each other. If they are really heavy they fall to the ground as snow or sleet.
Evaporation; when a liquid turns into a gas
Condensation; when water vapour turns into a liquid.
Precipitation; when the water droplets become big and heavy they fall down to the ground in the form of rain, snow, hail or sleet.
BY NEHA
The water cycle collects water from the sea that turns into a cloud and then rises into the air. Then as it rises up against the sun the sun it evaporates into a gas. It starts from a liquid then to a gas. The water cycle is so important to life on earth because if there was no water cycle we would have no water to drink and survive. It forms to a solid when condensation happens. This fits in with condensation because thats where it happens.
ReplyDeleteThe water cycle describes the movement of the water throughout Earth's surface,atmosphere and underground.Water is constantly moving from one place to another through the processes of evaporation,precipitation, transpiration, condensation and runoff.Water in the water cycle can exist as a solid, liquid or gas.
ReplyDeleteThe water cycle
ReplyDeleteThe earth has a limited amount of water. That water keeps going around and around and around in what we call the "Water Cycle".
This cycle is made up of a for main parts:
evaporation (and transpiration)
condensation
precipitation
collection
Evaporation is when the sun heats up water in rivers or lakes or the ocean and turns it into vapor or steam. The water vapor or steam leaves the river, lake or ocean and goes into the air.
Condensation is when water vapor in the air gets cold and changes back into liquid, forming clouds.
Precipitation occurs when so much water has condensed that the air cannot hold it anymore. The clouds get heavy and water falls back to the earth in the form of rain, hail, sleet or snow.
Collection - when water falls back to earth as precipitation, it may fall back in the oceans, lakes or rivers or it may end up on land. When it ends up on land, it will either soak into the earth and become part of the “ground water” that plants and animals use to drink or it may run over the soil and collect in the oceans, lakes or rivers where the cycle starts all over again.
It all starts from the clouds, they pore rain on mountains then the water goes to the sea/river what's called a collection. Then the sun evaporates into gas then the gas condenses into a cloud which rains out water or snow we call all the cloud types precipitation then it starts all over again.
ReplyDeleteFrom
Kian.J
water cycle
ReplyDeletethe water cycle is a cycle that goes around and around.
Lets start at the top of the hill.
First it gets raining then the water goes down the hill into a lake or a run off.a run of is were water runs into the ocean or the ground will absorb the water. so back were we were the water goes down into the ocean. Next the sun heats up the water by evaporating it to the cloud. then the could collect's it and then the wind pushes the cloud and then it rains again then the water cycle starts again. by soleiman
The water cycle describes how water is exchanged (cycled) through Earth's land, ocean, and atmosphere. Water always exists in all three places, and in many forms—as lakes and rivers, glaciers and ice sheets, oceans and seas, underground aquifers, and vapor in the air and clouds.
ReplyDeleteEvaporation, Condensation, and Precipitation
The water cycle consists of three major processes: evaporation, condensation, and precipitation.
Evaporation
Evaporation is the process of a liquid's surface changing to a gas. In the water cycle, liquid water (in the ocean, lakes, or rivers) evaporates and becomes water vapor.
Water vapor surrounds us, as an important part of the air we breathe. Water vapor is also an important greenhouse gas. Greenhouse gases such as water vapor and carbon dioxide insulate the Earth and keep the planet warm enough to maintain life as we know it.
The water cycle's evaporation process is driven by the sun. As the sun interacts with liquid water on the surface of the ocean, the water becomes an invisible gas (water vapor). Evaporation is also influenced by wind, temperature, and the density of the body of water.
Condensation
Condensation is the process of a gas changing to a liquid. In the water cycle, water vapor in the atmosphere condenses and becomes liquid.
Condensation can happen high in the atmosphere or at ground level. Clouds form as water vapor condenses, or becomes more concentrated (dense). Water vapor condenses around tiny particles called cloud condensation nuclei.
Precipitation
Not like evaporation and condensation, precipitation is not a process. Precipitation describes any liquid or solid water that falls to Earth as a result of condensation in the atmosphere. Precipitation includes rain, snow, and hail.
Fog is not precipitation. The water in fog does not actually precipitate, or liquify and fall to Earth. Fog and mist are a part of the water cycle called suspensions: They are liquid water suspended in the atmosphere.
Precipitation is one of many ways water is cycled from the atmosphere to the Earth or ocean.
Other Processes
Evaporation, condensation, and precipitation are important parts of the water cycle. However, they are not the only ones.
Runoff, for instance, describes a variety of ways liquid water moves across land. Snowmelt, for example, is an important type of runoff produced as snow or glaciers melt and form streams or pools.
ARMAAN
The water cycle is very important. Without the water cycle we would all die. Water helps us do our daily duties. If we wont drink water for three days you will die. Up to about 70% of our bodies are filled with water. But not only do we need water but plants and animals need water to survive.
ReplyDeleteWater will first be in the river etc. Evaporation occurs when water forms into a gas. The water is now called water vapour.
The water vapours start to cool down because the temperature drops and forms water droplets. This process is called condensation. Next the water soaks into a cloud. With to much weight the clouds precipitate. The water hail sleet or snow falls on the ground. Some times the water is absorbed into the ground other times it just sprints down. But eventually both ways the water is freed.
Raving rivers dictionary :
Evaporation - when liquid turns to gas
Condensation - when water vapor turns to solid.
Precipitation - when the water droplets become big and heavy they fall down to the ground in the form of rain, snow, hail or sleet.
SHEZA
The water cycle.
ReplyDeleteThe first bit of the water cycle is when the heat of the sun evaporates the water from rivers, laces, oceans and seas. While the water is evaporated you can see the water that is going up into the air. That is called water vapour. IF the water vapour is heavy it will fall to the ground and that acts like a cloud when it drops snow, rain and hail. The thing that drop snow, rain and hail is called precipitation. Some times precipitation happens and hits the ground it makes new rivers. This process starts all over again.
The water cycle is important to life because it helps plants to grow . If we didn't have the water cycle there would be so many fires. People and animals would be dying because the world would be dry.
ReplyDeleteThe sun heats water which then evaporates . This is when it turns into a gas . Condensation pours from a cloud. As a result rain comes down. When a temparature drops below 0 the water freezes and becomes a solid.
Subhan
ReplyDeleteThe water discribs how water evaparats from the surface [wich becomes gas] of the earth, rises into the atmaspheare, cools and condenses into rain or snow in clouds, and fall again to the surface as precipitation.