Ch 14: TASC Science: The Universe & Its Stars

About This Chapter

Discover important information regarding the universe and its stars in this chapter while you're preparing for the TASC Science test. Assess your grip of the material as you go by taking a practice quiz with each lesson.

TASC Science: The Universe & Its Stars - Chapter Summary

This chapter gets you familiar with key content such as the origins of the universe and evidence for the Big Bang theory through engaging video lessons. You'll also get acquainted with how energy moves within the sun. More material that you'll see in this TASC Science prep chapter includes:

  • Nuclear fusion and the formation of stars
  • Measurement of the distance to a star
  • Star types by size, color, and life cycle
  • Solar radiation and its effects
  • The Doppler Effect
  • The sun's structure and sunspots
  • Stages of the sun's life cycle

Prepare for the exam by watching these short videos and studying the corresponding lesson transcripts. The effective structure of each transcript features subheadings and bold key terms to clearly break down the respective lesson topic.

Objectives of the TASC Science: The Universe & Its Stars Chapter

The TASC Science exam establishes whether your subject-matter knowledge meets criteria set in the Next Generation Science Standards (NGSS). The information you learn in this chapter will fall under the Earth and space science content area on the exam, which is one of three major content areas and asks roughly 28% of the total questions on the science exam. There are nearly 50 multiple-choice questions on the TASC Science exam and a constructed-response question. The computer-based exam also features a single technology-enhanced question.

12 Lessons in Chapter 14: TASC Science: The Universe & Its Stars
Test your knowledge with a 30-question chapter practice test
Structure of the Sun

1. 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

2. 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.

How Energy Moves Within the Sun

3. How Energy Moves Within the Sun

This lesson will describe how energy is carried from the inner reaches of the Sun, through the radiative zone, then the convective zone, and finally into space.

What is Solar Radiation? - Definition & Effects

4. What is Solar Radiation? - Definition & Effects

The sun plays an important role to us on Earth. It provides many things such as light and warmth. But, what is solar radiation and how does it affect us? In this video lesson, you'll learn about solar radiation, how it allows us to survive, and the influence it has on our global climate.

Kirchhoff's Laws and Star Spectra

5. Kirchhoff's Laws and Star Spectra

This lesson will define for you three laws associated with spectra and how they relate to the composition of stars, as well as how they relate to atoms and wavelengths.

Types of Stars by Size, Color and Life Cycle

6. 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.

The Doppler Effect and Star Spectra

7. The Doppler Effect and Star Spectra

This lesson will outline what the Doppler effect is using a very familiar example, then parlay that knowledge into understanding how the Doppler effect is used in astronomy.

Measuring The Distance to a Star

8. Measuring The Distance to a Star

This lesson will tell you how astronomers can measure the distance to a star and how it relates to the way surveyors measure distances to landmarks right here on Earth.

The Brightness Of Stars

9. The Brightness Of Stars

This lesson will define and describe important terms related to a star's brightness, including luminosity, intrinsic brightness, apparent brightness, and more.

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

10. 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.

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

11. 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.

Nuclear Fusion & Star Formation

12. Nuclear Fusion & Star Formation

This lesson will explain how the processes of stellar formation leads to nuclear fusion. We'll also define nuclear fusion and hydrostatic equilibrium, and find out why temperature is so important to all of this.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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