Monday, March 23, 2015

Terms For Mt 3 Physical Science

Terms:


Continent: one of the main landmasses of the globe, usually counted as seven in number(Europe, Asia, Africa, North America, South America, Australia, and Antarctica).

Continental Drift:  the theory governing movement of continents which explains the formation,alteration, and extremely slow movement of the continents across the earth’s crust.


Continental Plate:  a tectonic plate that is found on land/continents.


Crust: The layer of igneous, sedimentary, and metamorphic rocks which forms the continents and the areas of shallow seabed close to their shores


Fossils: the preserved remains or traces of animals, plants, and other organisms from the remote past


Mid-Ocean Ridge: Any of several seismically active submarine mountain ranges that extend through the Atlantic, Indian, and South Pacific Oceans, each hypothesized to be the locus of sea-floor spreading


Oceanic Crust: the part of Earth's lithosphere that surfaces in the ocean basins


Oceanic Plate: a tectonic plate that is found in the ocean


Oceans: Main water bodies on the Earth’s surface


Paleomagnetism: the study of the record of the Earth's magnetic field in rocks, clay, or bricks. This record provides information on the past behavior of Earth's magnetic field and the past location of tectonic plates.


Pangaea: Alfred Wagner first theorized that continents had been joined in this single super continent


Plates: A part of earth’s crust that moves in relation to one another as defined by the theory of plate
tectonics


Sea-floor Spreading:  Africa and North America are slowly being pushed apart due to this phenomena

Friday, March 20, 2015

Chemical Bonds Essay Physical Science

Chemical Bonds Essay

First I am going to tell you about the ionic bond. An ionic bond, bonds a metal and a nonmetal. Also in the ionic bond and electron is transferred, making a positive ion and a negative ion. The ionic bond makes solids with strong bonds, that are very hard to melt.  This bond also gains or loses an electron . For example the atom that takes the electron becomes a negative ion. Then the other atom loses an electron and becomes a positive ion. Finally it results in a repeating lattice pattern of ions. One example would be like salt (NACL).


Then I am going to tell you about the metallic bond. This bond, bonds a metal and metal. The metallic bond has an electron cloud around the atoms also known as the “Sea Of Electrons”. The atoms donate outside electrons to the whole group.They are a very good conductor of all states, lustrous, very high melting point. An example would be NA, FE,AL,AU and CO. To sum up the metallic  
bond share their electrons.

Finally I am going to tell you about Covalent Bonds. Covalent Bonds are formed by the sharing of electron pairs. For example Water (H2O). Thus bond, bonds a metal and a nonmetal. Between non-metal the elemnts have the similar electronegativity. However they are not good conductors of any state.

Physical Science Mt 2 Chemical Bonds

This link will help you with Mt 2 Chemical Bonds.

https://drive.google.com/open?id=0B9mZ735tV5XrdVNraktkWWJlMnc&authuser=1

Mt 5 Physical Science A Disaster Plan

If you click this link it will help you plan out a disaster plan.


https://drive.google.com/open?id=0B9mZ735tV5XrNVJ1Y0d2QWV6X0E&authuser=1

Mt 5 Physical Science Essay Helper

MT 5 Physical Science Earthquake Essay Outline Helper

Introduction:
*What causes an Earthquake?
*Where do earthquakes occur?
*What are the parts to an earthquake?
*How do we measure earthquakes?

Richter Scale:
*What does it measure in scientific words?
*What does it measure in your own words?
*What types of numbers does it use?
*What is the difference between the numbers?
*What instrument is used?

Modified Mercalli Scale:
*What does it measure in scientific words?
*What does it measure in your own words?
*What types of numbers does it use?
*Can earthquakes with the same magnitude have different intensities? Give an example

Conclusion:
*How are they similar?
*Why is it important to know the information about earthquakes?