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Ch 19: The Origin of the Universe and Life on Earth: Help and Review

About This Chapter

The Origin of the Universe and Life on Earth chapter of this High School Biology Help and Review course is the simplest way to learn how the universe began. This chapter uses simple and fun videos that are about five minutes long, plus lesson quizzes and a chapter exam to ensure students learn about the origin of the universe and life on earth.

Who's it for?

Anyone who needs help learning or mastering high school biology material will benefit from taking this course. There is no faster or easier way to learn biology. Among those who would benefit are:

  • Students who have fallen behind in understanding the Big Bang and other theories used to explain the origin of the universe and life on earth
  • Students who struggle with learning disabilities or learning differences, including autism and ADHD
  • Students who prefer multiple ways of learning science (visual or auditory)
  • Students who have missed class time and need to catch up
  • Students who need an efficient way to learn about the origin of the universe and life on earth
  • Students who struggle to understand their teachers
  • Students who attend schools without extra science learning resources

How it works:

  • Find videos in our course that cover what you need to learn or review.
  • Press play and watch the video lesson.
  • Refer to the video transcripts to reinforce your learning.
  • Test your understanding of each lesson with short quizzes.
  • Verify you're ready by completing the origin of the universe and life on earth chapter exam.

Why it works:

  • Study Efficiently: Skip what you know, review what you don't.
  • Retain What You Learn: Engaging animations and real-life examples make topics easy to grasp.
  • Be Ready on Test Day: Use the origin of the universe and life on earth chapter exam to be prepared.
  • Get Extra Support: Ask our subject-matter experts any question about the origin of the universe and life on earth. They're here to help!
  • Study With Flexibility: Watch videos on any web-ready device.

Students will review:

This chapter helps students review the concepts in an origin of the universe unit of a standard high school biology course. Topics covered include:

  • The Big Bang theory
  • Formation of the earth and moon theories
  • Galaxy formation
  • Life cycle and structure of the sun
  • Evolution

12 Lessons in Chapter 19: The Origin of the Universe and Life on Earth: Help and Review
Origins of the Universe: The Big Bang and Expanding & Contracting Universes

1. Origins of the Universe: The Big Bang and Expanding & Contracting Universes

Students will learn the origins of the universe, the Big Bang theory, the timeline of the universe, how the universe is still expanding to this day, and what astronomers expect the universe to look like in the future.

The Origin of Life on Earth: Theories and Explanations

2. The Origin of Life on Earth: Theories and Explanations

Ever wonder how living things came from non-living things? We will explore what conditions on early Earth may have created life from non-living items.

Evidence for the Big Bang Theory: Background Radiation, Red-Shift and Expansion

3. Evidence for the Big Bang Theory: Background Radiation, Red-Shift and Expansion

Discover what evidence exists to support the Big Bang theory of the birth of the universe. Learn how cosmic background radiation, the red shift of light and the ongoing expansion of the universe led scientists to believe that the universe was started with the Big Bang.

Galaxy Formation: Spiral, Elliptical & Irregular Galaxies

4. Galaxy Formation: Spiral, Elliptical & Irregular Galaxies

This lesson explains how galaxies form, starting with the Big Bang. You'll also learn about the solar nebula hypothesis and three galaxy types, including spiral, elliptical, and irregular galaxies.

Formation of the Earth: Theories

5. Formation of the Earth: Theories

In this lesson, the theory of how the planet Earth formed will be discussed. This includes looking at how it differentiated into three layers, how it formed its atmosphere, water, and land features, and how it continues to evolve today.

Formation of the Moon: Theories

6. Formation of the Moon: Theories

Explore the four major theories on the formation of the Moon. The theories include the fission theory, capture theory, condensation theory and giant impact theory. Also look at both information supporting and flaws found in these theories.

Structure of the Sun

7. Structure of the Sun

Discover the layers of the sun, including the core, radiative zone, convective zone, photosphere, chromosphere, and corona. Find out which layers you can see from Earth. Investigate what sunspots and solar flares are.

Stages of the Sun's Life Cycle

8. Stages of the Sun's Life Cycle

Discover our Sun, the provider of energy for life on Earth. Learn how the Sun was born, how it lives as a main sequence star, how it will age into a red giant and how it will die as a white dwarf.

The Endosymbiosis Theory: Evolution of Cells

9. The Endosymbiosis Theory: Evolution of Cells

Ever wonder why some cells are very simple and others are complex with countless organelles to remember? We will look at how simple cells evolved to become more complex cells - as well as evidence to support this.

Evolutionary Change: Definition and Forms

10. Evolutionary Change: Definition and Forms

You've probably heard of Charles Darwin and evolution. We know that evolution is change over time, but here we will look at how these changes may have occurred during Earth's history.

The History of Life on Earth: Timeline and Characteristics of Major Eras

11. The History of Life on Earth: Timeline and Characteristics of Major Eras

The Earth is over 4.6 billion years old. Ever wonder what happened during certain time periods in that large amount of time? We will look at the major eons and eras of Earth's history along with important characteristics of each.

Levels of Biological Organization

12. Levels of Biological Organization

This lesson is about the organization of living things, or biological organization. Just like it can be helpful to organize your closet, scientists use a classification system to organize living things. This allows for clarity when talking about a species and provides information about an organism, just through the name!

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Other Chapters

Other chapters within the High School Biology: Help and Review course

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