Tuesday, November 27, 2018

Density- Intro To Matter (8th Grade)

 Introduction to Matter
  • Describe the difference between an object's mass (measure of matter) and an object's weight (measure of gravity).
  • Identify that as an object's mass increases, its weight will also increase (and vice versa).
  • Identify that density is a ratio of mass to volume by measuring the mass and volumes of various materials and calculating density.
  • Manipulate the density equation in order to solve for density, mass and volume (when given the other two).
  • Defend the claim that the densities of substances will not change if the amount of the sample changes.

Thursday, November 8, 2018

The Atom (8th Grade)

 





Atomic Structure
 SC.8.P.8.5
 SC.8.P.8.7
 SC.8.N.3.1

ATOM - BRAINPOP 


CLICK HERE: INTERACTIVE PERIODIC TABLE
Objective
Identify that atoms are the smallest unit of all matter and each atom consists of protons, neutrons, and electrons.

Identify the location of the nucleus and electrons and determine which subatomic particles belong in each location.

Determine the number of protons, neutrons, and electrons of common elements based on information on the Periodic Table of Elements. (Middle schoolers study stable atoms)

-Create models of atoms in order to identify the number and location of their protons, neutrons, and electrons.



ATOMIC NUMBER = # of PROTONS  6 
ATOMIC NUMBER = # of ELECTRONS 6 


12.00     -            6                 =        6
         ATOMIC 
MASS(ROUNDED) -   ATOMIC NUMBER= # of NEUTRONS 



PRACTICE 
ATOMIC NUMBER = # of PROTONS  
ATOMIC NUMBER = # of ELECTRONS  

         ATOMIC 
MASS(ROUNDED) -   ATOMIC NUMBER= # of NEUTRONS 





Tuesday, November 6, 2018

Theory Vs. Law (8th grade/7th grade)




SC.7.N.3.1 Recognize and explain the difference between theories and laws and give several examples of scientific theories and the evidence that supports them. (Also assesses SC.6.N.3.1 and SC.8.N.3.2.)
Also Assesses

SC.6.N.3.1 Recognize and explain that a scientific theory is a well-supported and widely accepted explanation of nature and is not simply a claim posed by an individual. Thus, the use of the term theory in science is very different than how it is used in everyday life.



SC.8.N.3.2 Explain why theories may be modified but are rarely discarded.






scientific theory is a well-substantiated explanation of some aspect of the natural world that has been gained by going through the scientific method and repeatedly tested and confirmed through observation and experimentation.


THEORIES = EXPLAIN AN EVENT OR PHENOMENON
Phenomenon- A fact or situation that is observed to exist or happen, or explanation .

CELL THEORY


FRANCISCO REDI'S MEAT EXPERIMENT 

SPONTANEOUS GENERATION 
CELLS COME FROM PRE-EXSITING CELLS 
REDIS MEAT EXPERIMENT 
SPONTANEOUS GENERATION



THEORY OF PLATE TECTONICS 




 ATOMIC THEORY
SC.8.P.8.1 Explore the scientific theory of atoms (also known as atomic theory) by using models to explain the motion of particles in solids, liquids, and gases.






SC.8.P.8.7 Explore the scientific theory of atoms (also known as atomic theory) by recognizing that atoms are the smallest unit of an element and are composed of subatomic particles (electrons surrounding a nucleus containing protons and neutrons).



NEBULAR THEORY
BIG BANG THEORY






scientific law is a statement that describes what scientists expect to happen every time under a particular set of conditions. For example, the law of gravity states that all objects in the universe attract each other. Unlike a theory, a scientific law describes an observed pattern in nature without attempting to explain it. Both scientific theories and scientific laws are developed slowly through repeated observation and experimentation.

LAW =DESCRIBES A PHENOMENON WITHOUT EXPLAINING IT.

Newton's Law of Universal Gravitation 



KEPLER'S LAW OF PLANETARY MOTION 



LAW OF SUPERPOSITION 

 LAW OF CROSS CUTTING -