1. Scientific Laws and Theories

2. Scientific Laws describe observed pattern in nature
Do not attempt to explain the observed patterns
Simple , facts
Can be mathematical equation
Example:
Law of Superposition – Oldest rocks on the bottom and youngest on top

3. Scientific Theories
Write the description of the Theory or draw the pictures
The following is a list of scientific discoveries. Some have been used by scientists to support this theory, while others have no relevance. Your job is to evaluate this list and determine the four most critical scientific discoveries to support the theory like a scientists has to do.

4. Plate Tectonics
the lithosphere, is broken into plates that move over the molten magma
Heat from the core rises and causes convection currents in the Earth’s mantle which move the plates
Never been able to study depths further than 7 miles into the Earth’s crust
Gathered evidence by seismic waves from Earthquakes and rock samples
Convergent boundaries – move towards each other
Divergent Boundaries – move away from each other
Transform boundaries – slide past each other

5. Plate Tectonic Theory Evidence (chose 4) Write down the Number – DO NOT WRITE OUT THE STATEMENT
Penguins are only found in the Southern Hemisphere
The shapes of continents look like they are separated pieces of a jigsaw puzzle
Rocks from around the world are different ages
There are large areas of lava upwelling that form mid-ocean ridges
The density of Earth’s layers increase as you get closer to the core
Tropical fossils are found in Antarctica
Rivers deposit sediments that form deltas at their mouths as the flowing water meets slow moving waters
Some parts of the ocean floor, the sediments, are much thinner than they should be if the ocean floor is billions of years old
Some volcanoes are more active than other volcanoes

6. The Cell Theory describes the basic properties of all cells.
The three parts of the cell theory :
All living organisms are composed of one or more cells.
The cell is the basic unit of structure and organization in organisms.
Cells come from preexisting cells.
the basic structure of all known life on Earth can be described by this theory.

7. The Cell Theory Evidence Write down the Numbers – DO NOT WRITE OUT THE STATEMENT
Flies appear in areas where there is spoiled, uncooked meat
All recognized organisms on Earth are composed of cells
All organisms need energy to survive but obtain this energy in different ways
Matter that is not alive or was never alive does not appear to have cells
Offspring will resemble their parents
Cells come in many different forms with sometimes very different organelles
If the organelles of cells are separated from each other, they will not be able to sustain life on its own

8. Scientific Theory Both Scientific Law Explains a natural phenomenon
Widely accepted by science community
Describes natural phenomenon
Simple
Multiple hypothesis tested to prove
Complex
Based on many investigations
Based on empirical evidence
Changed / revised with new evidence

9. Play Quizzizz game – best score out of two games will be put in gradebook
Take notes on the questions you missed
Game Code: