What is a fossil?

A fossil is the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.

Groups recipe:

There was a cup made of 50% (75 ml) sand and 50% plaster (75 ml).
There was a cup made of 30% sand and 70% plaster.
There was a cup made of 60% sand (45 ml) and 40% plaster (30 ml).
There was a cup made of 40% sand (30 ml) and 60% plaster (45 ml). 

The mixture that worked the best was 60% sand and 40% plaster. It has the best imprint. The 50% plaster and the 50% sand  was hardest to break apart.

If I had a 100 Dollars

Source: https://goo.gl/images/ej4FF2

The Sun would be worth: $99.85
Jupiter = 7 cents
Saturn = 3 cents
Neptune = 2 cents
Uranus = 2 cents
Earth, Venus, Mars,Mercury, Asteroids, meters, comets, etc. = the rest of the 1 cent would be split among the listed above. Earth getting the most of the dollar, comets receiving the least amount of the dollar. 

William Herschel

William Herschel 

1738 - 1822

 

Sir William Herschel became interested in astronomy at the age of thirty-five. Through early readings of Ferguson and Smith, Herschel became a skilled telescope maker. In the year 1774, Herschel made specula mirrors superior to any other mirrors of the time. With the specula mirrors, Herschel started to "observe the heavens". William's first observation was of Orion Nebula, which he had read about in Smith's works. 

On March 13, 1781, Herschel discovered the planet Uranus. Upon first observation, Herschel believed the planet was a comet. As a result of his discovery, Herschel was elected to the Royal Society in December of 1781. It was there that he was awarded an annual grant from King Gorge III of England to become the Court Astronomer of the King. 

In 1783, Herschel’s observations lead to the discovery of the Solar Motion. He determined that our solar system was moving between the neighboring stars in the direction of the star Lambda Herculis. In 1787, Herschel discovered two moons of Uranus: Titania and Oberon. In 1789, he discovered Saturn’s sixth and seventh moon, Enceladus and Mimas. 

Before 1781, Herschel had only observed four nebulae: The Orion Nebula, M43, globular cluster M5, and Andromeda “Nebula” M31. After that he spent years systematically studying the sky. After a year and a half (1786), he cataloged 1,000 new objects; three years (1789), after that he cataloged 1,000 more objects. Herschel’s final addition to the catalog was in 1802, in which he added 500 more objects. By the end of his career, William Herschel discovered about 2,500 new nebulae and star cluster in 20 years. 

After Herschel passed away, the astronomical community honored him by naming Moon crater Herschel. Herschel was the most celebrated astronomer of his time. He contributed to most of the branches of astronomy. He investigated the proper motion of the stars, derived the peculiar motion of the solar system, modeled the Milky Way galaxy from stellar statics, and speculated about the nature of the nebulae.

Source: http://messier.seds.org/xtra/Bios/wherschel.html

Written by: Rachael Del Boccio  

In Class 9/6/16

Earth to Moon Model

My Earth to moon model was not to scale. My Earth was substantially larger then the moon, which according to the in class discussion is incorrect. I also drew the moon to close to the Earth to have a proper model of the true distance between the Earth and the moon.

Reasons for the Seasons

The reason for the seasons is the Earths tilt on the axis.  The seasons change depending on how much sun light is hitting the Earth as it travels around the sun. 

After watching the video the concept of direct and indirect light became clear. When I stated the Earth was tilted on its axis effected the seasons, that depends on how the sun rays are hitting the Earth. 

The Phases of the Moons

There are different phases of the moon because the distance between the moon and the sun. The different angles in which the sunlight hits the moon effects the amount of the moon (phase) we can see.

I was correct. 


Written By: Rachael Del Boccio