
Alfred Wegener
Presentation
•
Science
•
6th - 8th Grade
•
Hard
Joseph Anderson
FREE Resource
8 Slides • 0 Questions
1
Wegener Solves a Puzzle
Pangea Lesson
By
Brandon Pittman Jr., Jameson Reese, Connor Donaldson & Losi Fonoimoana
2
Alfred Wegener, a meteorologist from Berlin, Germany, had realized something in his studies. Wegener had come to a theory that the Earth once was a whole. Although he was not the first to theorize this, he wanted to be the first to investigate. He saw that the coastlines of South America and Africa seemed to fit just right. He saw that numerous continents could even act as puzzle pieces in a large scale picture. He called the puzzle piece, Pangea.
Wegener's Discovery
3
Alfred also found that many different continents had similar fossils and plants. Some were located at the eastern coast of North America, others at western coasts of Europe. He thought these two continents must have been connected at some point in time, estimating at about 300 million years ago. Wegener further identified that South America & Africa also had rock of the same origin. He saw how rocks and mountain chains could go across some continents. Now he was getting more information to back-up his theory.
4
" The forces which displace continents are the same as those which produce great fold-mountain ranges."
Alfred Lothar Wegener
5
The Conclusion of his Theory
Although, many geologists didn't support this theory because he didn't have a good enough explanation about how the continent pieces actually moved. He had inferred that they moved past the ocean's floor, like when ships go between the cold waters of the Arctic Ocean. They said that the continents could not have gone through the large body of water. His theory was rejected by these geologists.
6
Other geologists, on the other hand, came up with another reason, land bridges. That they connected all the continents all at the same time at the bottom of the ocean. Geologists say that he was right about the similarities of Africa & South America, and observations at the Swiss Alps. But, sadly, Alfred did not live long enough to see people accept his theory.
7
Present Time Analysis
Now in present time, we call this scientific theory, plate tectonics. Many people, across the world, openly welcome this theory. It was made with Alfred Wegener's ideas, evidence and acceptance.
8
Thank you for learning with us!
Wegener Solves a Puzzle
Pangea Lesson
By
Brandon Pittman Jr., Jameson Reese, Connor Donaldson & Losi Fonoimoana
Show answer
Auto Play
Slide 1 / 8
SLIDE
Similar Resources on Wayground
7 questions
Physical and Chemical Changes Lesson
Presentation
•
6th - 8th Grade
7 questions
Τα φρούτα του φθινοπώρου
Presentation
•
KG
4 questions
7.ETS3.2--Biomaterials introduction
Presentation
•
6th - 8th Grade
6 questions
Multiply decimals
Presentation
•
6th - 8th Grade
7 questions
Distance on Coordinate Plane
Presentation
•
6th - 8th Grade
7 questions
DNA structure
Presentation
•
6th - 8th Grade
7 questions
Chemical changes 1: Physical vs Chemical
Presentation
•
6th - 8th Grade
7 questions
8th Grade Intro to Ag in North Dakota
Presentation
•
6th - 8th Grade
Popular Resources on Wayground
19 questions
Naming Polygons
Quiz
•
3rd Grade
10 questions
Prime Factorization
Quiz
•
6th Grade
20 questions
Math Review
Quiz
•
3rd Grade
15 questions
Fast food
Quiz
•
7th Grade
20 questions
Main Idea and Details
Quiz
•
5th Grade
20 questions
Context Clues
Quiz
•
6th Grade
20 questions
Inferences
Quiz
•
4th Grade
19 questions
Classifying Quadrilaterals
Quiz
•
3rd Grade
Discover more resources for Science
16 questions
Interactions within Ecosystems
Presentation
•
6th - 8th Grade
12 questions
PS.8.1.2, PS.8.1.3, PS.8.1.5 Review
Quiz
•
8th Grade
20 questions
Rocks and The Rock Cycle
Quiz
•
6th Grade
20 questions
Moon Phases and Eclipses
Quiz
•
6th - 8th Grade
16 questions
Photosynthesis and Cellular Respiration Review
Quiz
•
7th Grade
20 questions
Human Body Systems
Quiz
•
6th Grade
22 questions
6th & 8th Grade Science Material SOL Review
Quiz
•
6th - 8th Grade
15 questions
Punnett Squares
Quiz
•
6th Grade