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1. Evolution Definition Evolution is the change in species over time. Species evolve because: 2. Natural Selection The MOST Important Process Organisms with useful traits survive and reproduce more successfully. Over generations:→ helpful traits become common. The 6-Step Process 3. Adaptations Definition An adaptation is a feature that helps survival. Types: Type Example Structural Thick … Read more

Evolution Definition Evolution is the gradual change in living organisms over many generations. Species evolve over time through: Natural Selection The Core Idea Organisms with helpful traits are more likely to survive and reproduce. Over time: Natural Selection Flow The Natural Selection Process Key Terms Term Meaning Evolution Change in species over time Adaptation Characteristic … Read more

20 Quick Revision Questions Student Question Sheet Name: ______________________ Date: ______________________ 1. What was Pangaea? 2. Who proposed the theory of continental drift? 3. What is continental drift? 4. Name TWO pieces of evidence supporting continental drift. 5. Why was Wegener’s theory originally rejected? 6. What is the modern theory explaining continental movement called? 7. … Read more

Pangaea Pangaea was a supercontinent where all Earth’s continents were joined together about 300 million years ago. Over millions of years, Pangaea broke apart and the continents moved into their current positions. Breakup of Pangaea Laurasia Northern supercontinent: Gondwana Southern supercontinent: Australia was once connected to Antarctica as part of Gondwana. Alfred Wegener Wegener proposed … Read more

Pangaea Pangaea was a supercontinent where all Earth’s continents were joined together about 300 million years ago. Breakup of Pangaea Pangaea later split into two large landmasses: Laurasia Northern supercontinent: Gondwana Southern supercontinent: Alfred Wegener In 1912, Wegener proposed the theory of continental drift: Scientists first rejected his idea because he could not explain how … Read more

What is Pangaea? Pangaea was a supercontinent that existed about 300 million years ago.All Earth’s continents were joined together before slowly drifting apart. Continental Drift Theory Alfred Wegener In 1912, Wegener proposed that: This idea became known as continental drift. Evidence for Continental Drift 1. Matching Coastlines South America and Africa appear to fit together … Read more