Sand & WindmillBy :

Abhiram&

Sanjana

Sand

A loose granular substance, typically pale yellowish brown, resulting from the erosion of siliceous and other rocks and forming a major constituent of beaches, riverbeds, the seabed, and deserts.

How is sand formed

Sand is a sedimentary material loose grains of worn out and disintegrated rocks. Sand is a naturally occurring fragmented material comprised of tiny particles of decomposed rocks, shells, or corals, but there are also unnatural ways to form sand.

Types of Sand

Glass Sand Gypsum Sand

Desert Sand Olivine Sand

Garnet Sand

Volcanic Sand

Uses of sand

Construction

Water Filtration

Leisure And Sport

Pottery

Things made up of Sand

• Glass

• Sand paper

• Hourglass

Animals living on Sand

There some animals they are as follows:

• Ant • Arabian Camel

• Bandicoot• Bighorn Sheep

• Eagle• Great Horned Owl

Plants living on Sand

• Many plants are found in the desert.

• They usually grow to the ground

• These plants have special parts that help them save water.

Life on sand

There is not much crops in desert to grow but many people live there. They move their animals and belonging from place to place in search of water and plants. These men are crossing from the Syrian desert to Middle East. They are wearing long, loose clothes to protect themselves from the heat of the sand.

Desert

The desert is the land of extreme heat and dryness with cold nights. Desert are difficult place to live in. They often have names like:

• “THE DEATH VALLEY” • “THE EMPTY QUARTER”

Top 5 Deserts in world

The top 5 desert in the world are:• Sahara Desert • Gobi Desert• Gibson Desert• Thar Desert• Kalahari Desert

Kinds of Deserts

Hot Desert

•The summers are very hot.•The temperature are very warm all year round.

Cold Desert

•Short ,warm summers & Long, cold winter.•Found in places near north and south pole.

Oasis

An oasis is the only place where water is found in a desert. Water collects in hollows worn out by the wind. It may come from desert storms or from rain that falls on mountains on the edge of the desert. Rainwater drains through rocks deep under the desert and collects at an oasis.

Sand Dunes

The shape of a sand dune depends on the way the wind is blowing :

When the wind blows from one direction, curved dunes, called barchans, formed.

wind direction

Climate

• There are 2 types of climate Hot and Dry.• In the summer during daytime the temperature

of the Sahara Desert often goes to over 100 degrees Fahrenheit.

• The hottest temperature, meteorologists have recorded 136 degrees at Azizia, Libya on September 13,1922

• The desert receives less than 25 centimeters of rain each year.

Sandstorm

Violent wind forms the sandstorms.

Sandstorms can last to many days & hours.

Sandstorms may cause dehydration & suffocation of animals and humans.

Camels are the only one to survive in sandstorm

Windmill• Windmills are goods for the environment

because no harmful solids, liquid or gases are produce.

• No need of any fuel or toxic waste is needed.

• Wind energy is used to generate electricity by using wind turbines.

The blades catch the wind and turn the rotor which they are joined to.

The rotor is connected to the nacelle which houses all the working for the turbine.

The rotor turns a shaft which is connected to a set of cogs called a gear box.

The gear box is connected to a generator which makes electricity when it turns.

How does a wind turbine works

Facts on sand

• The tallest sand dune is ISANOE-n-TIFERNE.

• Deserts cover about one-third of the earth land-surface.

• The actacania desert in South America had no rain for 400 years.

Now we will show you some of our interviews.

Ms Deepa

What is sand ?Ans: Sand is tiny particles of rocks.

How is sand used in our daily life ?Ans: Lamps, Play ground, Bricks, Replace soil,

Construction.

How is sand connected with desert ?Ans: In the desert area there is a vast accumulation of

sand. Sand is a loose so difficult to cross.

Can you say anything interesting thing about sand ?Ans: The sand dunes

Ms Madhu What is sand ?Ans: Dried land where soil is totally gone.

How is sand used in our daily life ?Ans: Construction, Pottery, Cooking Utensils, Pots, Reduces Global

Warming.

How is sand connected with desert ?Ans: It is fully of sand. Very little of water.

Can you say anything interesting on sand ?Ans: Water Filtration

ThanksgivingWe both thank our:Our dear principal• Sir A.P. Singh• Ms Precy• Ms Rachna• Sir Danny• Ms NirupamaOur Mentor• Sir Manoranjan• Parents• Ms Deepa & Ms Madhu

Bibliography• www.sandatlas.org• www.desertbiomes.com• www.USGS.com• www.microscope-microscope.org• www.wikipedia.org• Children encyclopedia• Earth• Incredible earth• Googleimages• www.mbgnet.net• www.tooter4kids.com• www.neok12.com• www.GEOLOGY.com• www.physics.ohio-state.com• www.howstuffworks.com• www.wordsearchfun.com

The end

• Thank you for coming to our exhibition………….

By Sanjana and Abhiram