This document provides information about water and air. It discusses that all living things need water and air to survive. It describes the three states of water as solid, liquid, and gas and how water changes state with temperature. It also discusses the water cycle and key parts of the cycle including evaporation, condensation, precipitation, and collection. Air is described as a mixture of gases and its importance for living things to breathe.
Hello...hope you like it . this is all about water cycle .if you have doubts i'm sure that this ppt will solve it all.its the best ppt you will find for water cycle .ENJOY!!!
Hello...hope you like it . this is all about water cycle .if you have doubts i'm sure that this ppt will solve it all.its the best ppt you will find for water cycle .ENJOY!!!
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Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
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Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
4. All living things need water and air to live.
• It is found in three STATES
SOLID LIQUID GAS
Water changes state when you heat it or cool it.
5. The three forms of water
• You can find water in 3 different forms:
– Liquid
– Solid
– Gas
Water is a liquid. Ice is a solid at Water vapour
0 degrees. is a gas at
a hundred degrees
6. DOES WATER CHANGE?
• Water turns to GAS when it is HOT.
• Water turns to SOLID when it is VERY COLD.
• Water turns to liquid at ROOM TEMPERATURE.
8. Water
•We need water for drinking.
•We need water for swimming.
•We need water for cooking.
•We need water for cleaning.
•We need water for washing.
•We need water for watering the plants.
9. CLEANING
SWIMMING WASHING
USES OF
WATER
DRINKING COOKING
WATERING
THE PLANTS
11. WATER AND LAND
• The Earth is covered with WATER and LAND.
• There is more water than land on the Earth!
• We can find water is many different places. Most of
the water is salty.
12. Where we find water
• We can find water in
– A lake.
– A river.
– In a waterfall.
– The clouds.
– The seas.
– Groundwater.
– Reservoirs.
– The icecaps.
18. Oceans and seas are saltwater.
Rivers, lakes, icecaps, groundwater and reservoirs are freshwater.
19. WATER HERE
IS SOLID.
WATER HERE
IS LIQUID.
WATER HERE
IS GAS.
20. ALL ABOUT AIR
• Air is a mixture of gases.
• We cannot see air but it is all around us.
• People and animals breathe oxygen from the
air.
• All living things need air to live.
21. • Plants can’t grow without air.
• People and animals can’t breathe without air.
22. AIR IS FOUND IN THE ATMOSPHERE.
Atmosphere is the layer of gases that sorround the Earth
23. Characteristics of air
• Air is a mixture of gases, but it consists mainly
of OXYGEN and NITROGEN.
• As water it has NO SMELL, NO TASTE, AND NO
COLOUR
NITROGEN
OXYGEN
24. WIND
• Wind is moving air.
• Hot air goes up
• Cold air goes down.
• The difference in temperature causes wind.
• Wind moves air from one place to another.
• This is why clouds move.
25. Tipes of wind
• No wind • Calm
• Little wind • Breeze
• Strong wind • Gale
• Very strong wind • Hurricane
26. An anemometer measures how fast the wind is
moving.
A weather vane tells us wind direction
27. Weather
• Weather is the state of the atmosphere at a
certain time in certain places.
28. The weather can be windy.
The weather can be sunny.
The weather can be cloudy.
The weather can be rainy.
29. The weather can be stormy. The weather can be snowy.
The weather can be foggy.
31. Temperatures and Precipitation
• When the weather is HOT, the temperature is
HIGH.
• When the weather is COLD, the temperature
is LOW.
32. PRECIPITATION
• Precipitation is water falling from the
atmosphere to the ground.
• It can be:
• LIQUID ---------RAIN DROPS
• SOLID -------------- SNOW FLAKES
• BALLS OF ICE --------- HAIL STONES
34. FRESHWATER
• We can only drink CLEAN freshwater. We call
this DRINKING WATER.
• Water from rivers and lakes is NON-DRINKING
WATER.
35. DON’T WASTE WATER
• We must save water.
• Only the 3% of all the water on Earth is
freshwater.
36. The drought
• When it doesn´t rain for a long time it’s
difficult for the plants and fish to survive.
• They usually happen in summer.
37.
38. What is the water cycle?
• The water cycle is a continuous process of
EVAPORATION, CONDENSATION,
PRECIPITATION and COLLECTION
39. The water cycle
• When it is hot Water from the sea evaporates.
• The water vapour condenses into tiny drops and
form clouds.
• When the clouds are cold, it rains or snow.
• The rain or snow falls into the sea.
47. PRECIPITATION
• The wind moves the clouds. When the clouds
cool, water from the clouds falls as rain. If it is
very cold, the water freezes and falls as snow.
Rain and snow are both types of precipitation.
48. COLLECTION
• The water that falls to the ground eventually goes
into rivers. It can travel to the rivers across the
surface of the Earth or underground. Rivers take the
water back to the ocean and seas.