This week in scienc we learned about what was happening in Iceland. Iceland is splitting apart bvecause the North Atalntic Ridge goes right though the middle of it. The North Atlantic Ridge is slowly breaking apart and that means Iceland is breaking into two peices.

On Thursday we got a worksheet called "Determining the Age od Sedimentry Rock Layer". It had different laws on the front page. The laws were; Law of Superposition, Law of Original Horizontality, Law of Lateral Continuity, and Cross-Cutting Relationship.

Law of Superposition- This is when younger rock layers cover the older rock layers.

Law of Original Horizontality- This is when the rock layers cover each other horizontally.

Law of Lateral Continuity- Rock was deposited and then it seperated. Then the rck was alternated.

Cross-Cutting Relationship- A younger rock cuts through an older rock.