how rocket engines work

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The idea of a rocket is very simple. Gasoline and liquid oxygen are pumped to a combustion chamber. A reaction is created and it enlarges therefore shoots the rocket up. To get propulsion the reaction is forced through a nozzle to get higher velocity. To keep a one pound objects in the air rockets burn two types of fuel, liquid fuel and solid fuel. The solid fuel is gunpowder but it explodes instead of propelling the rocket up and the liquid fuel is gasoline.

Solid fuel rockets have been the first to be recorded in history. The first rockets(solid fuel) were invented by the Chinese. The biggest problem was once it was lit it could not be stopped. So solid fuel rockets are only used for missiles, flares, and booster rockets.

A rocket engine is not a conventional engine. A conventional engine moves pistons up and down and turns a cars wheels.

Letter from Mama by Liam

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Hello Lucy!

It’s me Mama. I’m here to say that life seems good in Lucky Diggins. Maybe I can come visit you for a few days if you’d like. I bet you are a great librarian. Maybe one day you can save enough money to build  an outdoor library. I hope I can visit your library.You are very smart to build a library because on a cold day you can read a book.  I hope that I like the Sandwich Islands and Brother Clyde will like this new place as well. Sending all my love.

 

Love, Mama

If I Were President

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If I were president I would make it illegal to kill animals if they are not trying to kill you. I would have all the weapons melted into statues. I would do this because I love animal and they should be respected. The next thing I would do is make it illegal to chop down trees. We need trees to live and they are also beautiful. The only guns that would be allowed would be in the shooting range, that way people that wanted to shoot would be in a safe place. I would make it illegal for rich people to take land and food away from poor people. I would make sure all people had a home to live in.  I would make sure houses are made with recycled products not new wood from trees. I would be sure that everyone with drivers licenses would have to get their smog check exactly after they got it. In general I would make sure that all people and the planet are happy, healthy and safe.

For these reasons, that is why I would make a GREAT President!

Gala Donation Letter

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IMG_2018Dear Owners Of Coldstone,

I am a fourth grader at OTA (Old Town Academy). I love your creamy chocolate ice cream! I would love to have discount cards for our school gala.

This is why you should give us the cards: If you are a small company it will help spread the word, not many people in my school know you.

Thank you for your time and I hope that you give us the discounts! you will get twice as much money!

Sincerely,                                                                                                                                Liam Figueroa

The Volga River

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The volga river

The Volga River is the longest river in Europe, about 2,300 miles (3,700 km )The  It originates at an elevation of only 740 feet (225 m) in the Valday Hills northwest of  Moscow, connects with the Rybinsk Reservoir. The river heads east past Yaroslavl, Nizhny Novgorod and Kazan. From there it turns south past Samara and Volgograd. Since the initial elevation is so low, the river flows slowly, and finally enters the Caspian Sea, below sea level in a wide delta near Astrakhan. Canals connect the river with the Baltic Sea via the Rybinsk Reservoir. The Moscow Canal connects it with the Moscow River and the Oka River. At Volgograd, it links, through canals, with the Don River and Black Sea. The Volga carries about half of all river freight in Russia. Numerous dams (bypassed by locks) provide hydroelectricity and water for irrigation. The river, known in Russian folklore as Mother Volga, has played an incalculable part in the life of the Russian people. 

http://www.volgawriter.com/VW%20Volga%20River.htm

Treasure Island Project #1

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The Adventures Of Billy Bones

One day billy bones went to the store. He bought 5 swordfish and 20 oysters. When he got home he cooked all his food and laid it in plates across his table. (As we all know he’s having a party). He invited : Black Dog, A living bottle of rum and jim. when they came they played xbox for an hour. then they ate every thing he bought except one oyster.when they went home they slept well.

The next they day bought ticket  for the amazon.They brought a:camera,machete and satilite phone.when they got there they bought a hotel room for four.they went to walk in the city they entered a cabbage and cheese throwing contest.they won a cat that was white. he was super fat. when they got home they were so tired they slept again

BELL’S FIRST RING

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Bell

 A Biography of Alexander Graham Bell

By Liam Figueroa

Alexander Bell was the inventor of the telephone.

Bell telephone idea

 

 

 

 

Many other inventors tried to invent the telephone.

Bell was born in 1847 in Edinburg, Scotland.

Bell’s mother and wife were deaf.

Bell was a professor at Boston University. He taught deaf people how to speak.

Bell was the first to get a patent in 1876 for the first telephone.

phone model

A telephone transmits and receives sounds telegraphically.

A telegraph is a thin membrane vibrated by the voice.

He began his experiments in 1873.

Bell’s assistant was a man named Thomas Watson.

The first successful signs of a telephone experiment came on June 2nd 1875.

An experiment showed that the movements of a reed in a magnetic field could reproduce spoken sound.

Bell Telephone

Bell Telephone Company was created 1877.  Today it is known as AT&T.

Alexander Bell also invented the microphone, metal detector, records and a device that helps detect icebergs.

Bell bullet

Alexander Graham Bell died in 1922. Upon his death all the phones in North America were silenced for a short period of time.