Monday, December 5, 2011

Earth and Moon

  • The moon does not make it's own light, it reflects the light of the sun
  • The moon is Earth's closets neighbor
  • Earth and Moon rocks are similar
  • Moon has no air or atmosphere
  • Moon has extreme temperatures that make it impossible to live
  • There are a few tall mountains and flat plains, but mostly craters
 
  • Crater-like a hole in the ground
  • meteoroids are large rocks that travel through space, when they crash into a planet they can form craters
  • Earth's atmosphere burns up most meteoroids before they hit Earth
 
  • The Moon revolves around Earth
  • Moon's orbit around Earth takes 29 days (1 month)
 
  • Early calendars were based on motion of the Moon
  • Apparent shapes of the Moon in the sky are called phases
 
 
  • Moon has gravity that pulls on Earth, when the Earth faces the Moon, the land and water are pulled a little by the Moon's gravity
  • The Moon has more pull on the Earth because it is closer than the sun
  • Moon pulls on water to make tides (water rises higher or lower)
  • Eclipse-shadow cast by earth or moon
  • Lunar eclipse-Earth casts a shadow on the moon
 
  • Solar Eclipse-Moon casts a shadow on Earth
 
  • Only a lunar eclipse is safe to watch

Earth and Sun

  • Earth moves around the sun
  • Rotation-spinning
  • axis-real or imaginary line an object spins around
  • Earth completes 1 rotation every day (24 hrs)
 
  • During the day Earth faces the sun (where you live)
  • At night, where you live faces away from the sun
  • Apparent Motion-the way something appears to move, not how it actually happens (the sun appears to rise in the East and set in the West) this is not real motion
  • Stars do not move, planets and moons may appear to move differently than they actually are
  • Shadow is formed when light strikes an object but does not pass through
  • Shadows change with the position of the sun (shadows are shorter when the sun is high in the sky, longer when the sun is low in the sky)
 
  • Revolution-object travels around another
  • path a revolving object takes is an orbit
  • Earth's orbit is like an ellipse (flattened circle) takes 365 days (1yr) to complete
  • The tilt of the axis of Earth (23.5) does not change
  • hemisphere (hemi=half, sphere=ball) 
  • Seasons come from the tilt of the axis and revolution around the sun
  • If sunlight hits a part of the earth more directly than other parts, it is summer
  • If sunlight does not hit the earth directly, it is winter
 
  • At the equator, the suns path in the sky, and temperatures change little
  • At the poles, the sun's path changes greatly, as do the temperatures
  • The sun changes apparent paths change in the same pattern every year, which helps scientists make predictions about the rising and setting times of the sun

Friday, December 2, 2011

Changes Caused by Weather

  • A flood is when water flows onto land that is normally dry
  • This can come from heavy rains or snow that melts too fast
  • Floods can carry mud and sweep away anything in it's path
 
  • Floods help take new soil to the land
  • Many fires are caused by lightning
 
  • Most places recover from natural fires
  • To keep the land safe, do not play with matches or light fires in dry places
  • A tornado is a strong column of spinning wind
 
  • They can destroy everything in their path
  •  (narrow path)
  • The Great Plains in the USA are called the "Tornado Alley" because there are many many Tornadoes
  • A Hurricane is a large powerful swirling storm
  • They have strong winds and heavy rains
  • Hurricanes form over warm oceans and cause heavy flooding and destruction
 
 
  • High temperatures are causing more hurricanes
  • Gravity and heavy rains can cause landslides (rocks and soil move very fast downhill)
  • An avalanche is like a landslide made of snow and ice
 

Thursday, December 1, 2011

My Brother Martin

  • Brother Martin and Christine were born in the same room
  • They lived in a house that belonged to their grandparents, the reverend (priest) and Mrs. A.D. Williams
  • They lived there with them and Aunt Ida
  • Grandmother always took care of the children
  • She would read to them about many places around the world
  • Christine and her brothers likes to play and play pranks on people
  • M.L liked music and sometimes traveled with mother to play music
  • They lived in Sweet Auburn, Atlanta Georgia
  • There were unfair laws that kept black people from doing certain things
  • The kids all played together, white and black
  • One day, ML and AD go to play with their friends, but their friends say that they can't play anymore because they can't play with negroes (black people)
  • Segregation was a mean rule that kept black people away from white people, it also gave black people less rights than white people.
  • Daddy was a minister at a Baptist church, and he did not like segregation
  • One day a shoe salesman would only serve the black people hidden away from white people, so Daddy took them somewhere else to buy shoes
  • ML grows up to be Martin Luther King, a famous African American speaker. He fought for equal rights of black people and white people.

Roadrunner's Dance

  • In the beginning, a snake scares a family and says that he is "king of the road" and that no one can cross without his permission
  • The village elders (wise people) gather to decide what to do about the big snake, he is stopping people from visiting neighbors and going places
  • Desert Woman has a solution
  • She rode on a summer cloud to the snake, and placed a rattle on his tail
  • This way whenever he was going to strike, everyone could hear him rattle first
  • The snake became a rattlesnake and became even more mean
  • Desert woman gathers clay from Sacred Mountain and made a body
  • Deer brought branches for legs
  • Raven gave long black feathers for a tail
  • Eagle gave strong feathers
  • Heron gave a long reed for a beak
  • Desert woman made the new animal and called him roadrunner
  • Then she breathed life into the clay
  • Desert Woman told roadrunner to dance around rattlesnake and peck at his tail to teach him he is not king of the road
  • Roadrunner had to practice his running and dancing tricks
  • Roadrunner and rattlesnake fight, rattlesnake loses
  • He is no longer king of the road
  • Everyone was happy and free to come and go without fear of rattlesnake

Dear Mr. Winston

  • Cara has to write an apology letter for bringing a snake into the library
  • Her parents make her write the letter
  • The letter needs to be genuine, meaning it needs to be honest and meaningful
  • Cara brought the snake into the library in a cardboard box
  • She was trying to find out what kind of snake it was by looking for pictures in the library
  • She wanted to use the big green reference book that could not leave the library
  • Cara sends flowers to the librarian who got taken away in the ambulance
  • She apologizes many times
  • She bought the snake with one month's allowance (saved money)
  • The librarian wanted to see what was in the box
  • Cara does not think it was poisonous
  • The librarian opened the box, saw the snake, screamed, and fainted.  When he fainted his whole body went into a rash, and the snake slithered over and touched him
 

Monday, November 28, 2011

Benjamin Franklin Stole the Lightning

  • Ben Franklin was good at many things, like writing funny stories, arguing, swimming, music, drawing cartoons, and traveling
  • he was also a soldier and politician (government)
  • he helped to write the Declaration of Independence
  • he helped start a hospital, a school,. and a fire department
  • he liked to make inventions the best (helpful ideas that no one had thought of before)
  • he used a kite to pull him in the water to help him swim faster
  • he thought of daylight savings time,  and special glasses to help people see better (to see up close and far away)

  • he invented a special chair to help him collect library books
  • he invented a special musical instrument that played music very beautifully
  • he said "an apple a day keeps the doctor away"
  • he had many ideas how to help keep people healthy, like eating fruits and vegetables and exercising
  • he discovered the gulf stream, a stream of warm water in the ocean that helped people sail faster over the ocean
 
  • many people were doing crazy tricks with electricity
  • Ben decided to try to steal lightning from the sky because he thought it was electricity
  • he put a key on a string attached to a silk kite and flew it up into a storm
  • lightning hit the kite and BAM!!  it shocked the key and sparks flew everywhere
 
  • Ben decided to make his most famous invention, the lightning rod
  • he put a rod of iron on top of houses with a wire to the ground
  • now the lightning would strike the rod instead of the house and travel safely to the ground
 
  • Ben also helped America become a free country by asking France to help defeat the British