About This Chapter
ILTS Biology: The Solar System & the Universe - Chapter Summary
Use the lessons in this chapter to review information about the origins and structure of the universe and our solar system. You'll be prepared to answer ILTS Biology exam questions on topics such as:
- The Big Bang Theory and evidence for it
- Types of stars and how they form
- Types of galaxies
- The structure and life cycle of the sun
- Black holes
- Inner, outer and dwarf planets of the solar system
- Theories on how the Earth and the moon were formed
- Characteristics of asteroids, meteorites and comets
- How technologies are used to study the universe
These lessons are available for viewing as you schedule permits, on a computer, tablet or smartphone. Written transcripts of the lessons have key terms highlighted so you can tell what's important. There's even an ask-an-expert feature where you can pose questions to our instructors.
ILTS Biology: The Solar System & the Universe Chapter Objectives
In Illinois, passing the ILTS Biology exam is one of the requirements for obtaining a teaching certificate in that subject. The ILTS Biology exam consists of 125 multiple-choice questions, divided into six subareas. Questions on the solar system and the universe are in the subarea called Earth Systems and the Universe.
You can get experience answering multiple-choice questions like you'll see on the exam through our lesson quizzes. These brief tests also let you assess your knowledge of the subject. The quiz answer keys provide links to the lessons, making it easy to jump back to specific points to review information.
1. The Big Bang Theory: Explanation and Evidence
A popular scientific theory is that our universe originated with what is known as the Big Bang. This lesson explains what the Big Bang is and the evidence that supports it. Following the lesson, you can test your newfound knowledge with a quiz!
2. 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.
3. Types of Stars by Size, Color and Life Cycle
Learn to identify the different sizes and colors of stars and how they relate to the star life cycle. In this lesson, we'll talk about spectral classification, how many stars there are of each type and the approximate color of the different classes of stars.
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.
5. The Sun: Structure & Life Cycle
Learn some secrets of our star, the sun, and discover what's inside of it. Learn about the history and future of the sun, then test your new knowledge with a quiz!
6. Life Cycle of Black Holes
Learn about black holes, their myths and their reality. Learn how black holes form after stars undergo supernovae and create singularities. Discover how big black holes grow, how scientists find black holes and where black holes are located in the universe.
7. Inner Planets of the Solar System: Mercury, Venus, Earth & Mars
Take a tour of the four inner planets: Mercury, Venus, Earth and Mars. Known as the terrestrial planets, find out what makes each of them unique and how they are different from the outer planets, the gas giants.
8. 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.
9. 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.
10. Planetary Predictors of Extraterrestrial Life
Investigate what is needed for life to exist anywhere and the implications for life in our solar system beyond Earth. Consider Mars and some of the moons of Jupiter and Saturn, including Europa, Callisto, Ganymede and Enceladus.
11. Outer Planets of the Solar System: Jupiter, Saturn, Uranus, Neptune
Take a tour of the outer planets of our solar system: Jupiter, Saturn, Uranus, and Neptune. Find out what makes each of these gas giants unique and learn about Pluto, a dwarf planet.
12. Dwarf Planets of the Solar System: Pluto, Eris, Haumea & Ceres
Discover why Pluto had to leave the league of planets and was downgraded to a dwarf planet. Learn the definitions for planet and dwarf planet. Find out about the currently classified dwarf planets in our solar system: Pluto, Eris, Ceres, Haumea and Makemake.
13. Asteroids, Meteorites & Comets: Definitions and Characteristics
This lesson will cover the definitions and characteristics of asteroids, comets and meteorites. It will also explore what impact they have had on Earth and the impact they might have in the future.
14. Using Technology to Study the Earth & Universe
Have you ever wondered how we know so much about the universe? Learn about how we use technology to study the universe, from the tiny to the enormous. Then take a quiz to test your knowledge.
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Other chapters within the ILTS Science - Biology (105): Practice and Study Guide course
- ILTS Biology: Scientific Inquiry & Research Methods
- ILTS Biology: Measurement & Observation
- ILTS Biology: Biology Lab
- ILTS Biology: The Origin of Life on Earth
- ILTS Biology: Biological Evolution
- ILTS Biology: Diversity of Life
- ILTS Biology: Cell Cycle & Division
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- ILTS Biology: Plant Anatomy & Physiology
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- ILTS Biology: The Hydrosphere
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- ILTS Biology: Weather & Storms
- ILTS Biology: Cell Biology
- ILTS Biology: Prokaryotic Cells
- ILTS Biology: Cell Communication
- ILTS Biology: Inorganic Chemistry
- ILTS Biology: Organic Compounds
- ILTS Biology: Nucleic Acids
- ILTS Biology: Enzymes
- ILTS Biology: Metabolic Biochemistry
- ILTS Biology: DNA Replication
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