Lesson 1 Origin and Structure of the Universe and Solar System PDF

Summary

This document outlines a lesson plan on the origin and structure of the universe and solar system for secondary school students. It includes objectives, guide questions, and an analysis section. It also introduces various theories such as the Big Bang Theory, Steady State Theory, and Pulsating Theory. Lastly, it includes some performance tasks.

Full Transcript

OBJECTIVES At the end of the lesson, the learners should be able to; 1.Describe the historical development of theories that explain the origin of the Universe; 2.Compare the different hypotheses explaining the origin of the Solar System 3. Describe the characteristics of Earth that are n...

OBJECTIVES At the end of the lesson, the learners should be able to; 1.Describe the historical development of theories that explain the origin of the Universe; 2.Compare the different hypotheses explaining the origin of the Solar System 3. Describe the characteristics of Earth that are necessary to support life; 4.Explain that the Earth consists of four subsytems, across whose boundaries matter and energy flow. Instructions: Using your mobile gadgets, Write anything you know about the universe and the solar system. Scan the QR code or type the link to proceed with the short activity. https://www.menti.com/aliqsfuwb1e3 GUIDE QUESTIONS: 1.What is the Big Bang Theory? 2.How are the elements in the periodic table related to the creation of the universe? 3.Do you think there is a significance in the color of the galaxies? What does it tell us? How does the universe begin? Why Big Bang theory is the most accepted among others? What are the different evidences of an expanding universe? Give real-life instances of every theory BIG BANG THEORY STEADY STATE THEORY PULSATING THEORY “singularity” expansion of the universe high amount of light elements detection of the cosmic microwave background (CMB) radiation GEORGES HENRI JOSEPH EDOUARD LEMAITRE EDWIN POWELL HUBBLE Hubble’s law ARNO PENZIAS and ROBERT WILSON discovered that microwaves with wavelengths of about 7 centimeters were present in space. (CMB) HERMANN BONDI THOMAS GOLD FRED HOYLE - Pulsating theory also known as Oscillating Universe Theory, proposes that the universe is expanding and will contract once all the energy after the Big bang has been used up. Then, it will expand again once it approaches the point of singularity. The Pulsating universe is a combination of big crunch and big bang. Big crunch occurs when the universe expands and eventually reverses, then collapses causing the formation of a singularity. Singularity result to a big bang and the birth of a new universe. Richard Tolman, a Caltech professor, proposed it. Tolman called the birth of another universe as the big bounce. RICHARD C. TOLMAN The suggestion that the universe would collapse on its own after it reached its full expansion violates some current laws of physics, such as the postulated existence of dark energy. The currently postulated end of the universe is by big freeze or heat death. A. ENCOUNTER HYPOTHESIS - One of the earliest theories for the formation of the planets. According to this hypothesis, A collision happened and huge amounts of gas from the sun explode out of it but more in the same directions around the sun. B. NEBULAR HYPOTHESIS - In this theory, the whole solar system starts as a large cloud of gas that contracts under self- gravity. C. PROTOPLANET HYPOTHESIS - The current working model for the formation of the solar system is called the protoplanet hypothesis. It incorporates many of the components of the nebular hypothesis, butt adds some new aspects from modern knowledge of fluids and states of matter. P E R F O R M A N C E TA S K 1 : WA N D E R E R S I N T H E S O L A R S Y S T E M Instructions: The term "planet" comes from the Greek word "planetes" which means wanderers. Research one (1) planet in the solar system and compare its features to Earth. (Groupings)

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