Fil in the blank- use the correct word to fill in the blank: The earth is about billion years old. No one knows exactly when or how the first living organism evolved, but we know that life existed early as billion years ago, 800 million years after the planet formed. For the following 3.3-billion-year, life evolved slowly, and although some multicellular organisms developed most of the biosphere consisted of a single cellular organisms. Became more complex, abundant, and varied about 543 million years ago. The flourished between 225 million years ago and million years ago. And our direct ancestors have been on earth for million years, for only about 1/10 of of the planets history.
Unit 1 – Science
- Fil in the blank- use the correct word to fill in the blank:
- The earth is about billion years old. No one knows exactly when or how the first living organism evolved, but we know that life existed early as billion years ago, 800 million years after the planet formed. For the following 3.3-billion-year, life evolved slowly, and although some multicellular organisms developed most of the biosphere consisted of a single cellular organisms. Became more complex, abundant, and varied about 543 million years ago. The flourished between 225 million years ago and million years ago. And our direct ancestors have been on earth for million years, for only about 1/10 of of the planets history.
Word bank-
4.6 organisms 65 3.8 5-7 1% dinosaurs homo sapiens 2900
2. Short answer – explain each principle and provide an example for each
- Principle of uniformitarianism-
- Principle of Catastrophism-
3. Provide definitions of the word provided:
- Feedback:
- Sedimentary:
- Atmosphere:
- Minerals
- Igneous
- Extractive
- Threshold
- Geosphere
Tectonic plate theory:
4. What are 3 main layers of the earth? (provide an example of what each layer consists of)
5. What is a tectonic plate?
6. How do the tectonic plates interact with each other?
7. There are a few ides supportive of continental Drift Theory. Can you think of two facts and support your facts towards the theory continual drift?
8. how magma is produced, in a subduction Zone? Explain
9. over time how do mountains form?
10. name the 3 types of earthquakes and give explanation of how the earthquake action happens and the interaction of the plates?
11. true or false
- volcanoes form at a divergent boundary
- is the earths core made of 2 different parts?
- a seismic wave is a wave that travels through rock
- P waves- travel slow and are the second waves to reach and observed station
- An epicenter of an earthquake is directly over the focus at the earth’s surface?
- The focus is the initial rupture point of an earthquake?
- An earthquake produces 2 main types of waves?
- The focus of an earthquake is typically lying an the earth’s surface?
- S waves- are faster than P waves and each observed stations the same time as P waves?
- As earth rotates, the liquid outer core spins over the inner solid, creating the earths magnetic field
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