About This Chapter
NES General Science: Scientific Inquiry - Chapter Summary
This chapter on scientific inquiry is designed to help you study for the NES General Science exam. You'll cover the steps of scientific investigation, sampling techniques used in science experiments, dimensional analysis, scientific notation and more. When you're finished with the chapter, you should be able to:
- Explain why controlled tests are important in scientific research
- Use charts and graphs to organize data
- Evaluate and present data from scientific investigation
- Determine whether or not given evidence supports a conclusion
- Take safety precautions and understand risks in science experiments
- Use the appropriate tools for data collection and scientific tests
- Solve for unknowns in scientific equations
Use the short video lessons to reacquaint yourself with topics you may not have studied in a while. Each lesson is less than ten minutes long and comes with a full written transcript. Test yourself with the practice quizzes, and contact our knowledgeable instructors if you have any questions.
1. The Nature of Science
This lesson will explore the basic nature of science. It will distinguish science from pseudoscience and hypothesis from theory and natural law; it will give plenty of examples of each.
2. What is Scientific Investigation? - Definition, Steps & Examples
Scientific investigation is the way in which scientists and researchers use a systematic approach to answer questions about the world around us. Read on to find out more. A quiz is provided to test your understanding.
3. Importance of Controlled Tests in Scientific Research
One way to ensure that your experimental results are meaningful and relevant is to control for factors that may affect your experiment. In this lesson, we'll talk about how to do this and why it's so important in scientific research.
4. Sampling Techniques In Scientific Investigations
We can learn a lot by gathering information from a small subset of a larger group. By sampling this smaller group, scientists can save time and money while still gaining a good understanding of the population as a whole.
5. How to Organize Data with Charts & Graphs
Research is only valuable if you can share the data effectively. In this lesson, we'll learn how to organize data and construct various charts and graphs to represent research data.
6. Evaluating Data from Scientific Investigation
After watching this video, you will be able to explain the meaning of the terms 'accuracy' and 'reproducibility,' or precision, as they relate to science experiments. A short quiz will follow.
7. Presenting Data from Scientific Investigations
In this lesson we'll overview the best practices for presenting data from scientific investigations. We'll talk about how to select appropriate media, cite sources, and use symbols, equations, pictures, and graphs in your presentations.
8. Understanding Whether Given Evidence Supports a Conclusion
Part of being a good scientist is evaluating other scientists' work. One aspect of this is knowing whether the evidence provided supports the scientists' conclusions. While this is not always easy, it is necessary in order to produce good science.
9. Understanding Risks & Taking Safety Precautions in Science Experiments
An important step in designing your experiment involves identifying and evaluating any potential safety risks. Knowing what these risks are ahead of time can help you avoid accidents and dangerous situations, which helps keep the experiment safe and fun for all.
10. Using Appropriate Tools for Scientific Tests & Data Collection
A properly run experiment depends on using the right tools, both for data collection and analysis. In the end, it will save you time, money and frustration to spend some time planning out which tools are most appropriate for your work.
11. Unit Conversion and Dimensional Analysis
How is solving a chemistry problem like playing dominoes? Watch this lesson to find out how you can use your domino skills to solve almost any chemistry problem.
12. Significant Figures and Scientific Notation
Are 7.5 grams and 7.50 grams the same? How do scientists represent very large and very small quantities? Find out the answers to these questions in this video.
13. Solve for Unknowns in Scientific Equations
Calculating a missing value in an equation is something you may come across in your scientific analyses. As long as you know the relationship between the variables in the equation, as well as the rest of the measured values, this is a relatively straightforward process for you to master.
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Other chapters within the NES General Science (311): Practice & Study Guide course
- About the NES Test
- NES General Science: Scientific Laws & Theories
- NES General Science: Science & Society
- NES General Science: Organization of Matter
- NES General Science: Characteristics of Matter
- NES General Science: Atomic Structure
- NES General Science: The Periodic Table
- NES General Science: Nuclear Chemistry
- NES General Science: Energy & Matter
- Chemical Formulas & Bonds
- NES General Science: The Mole Concept
- NES General Science: Chemical Reactions
- NES General Science: Acid-Base Chemistry
- NES General Science: Equilibrium
- NES General Science: Solutions & Solubility Factors
- NES General Science: Physics & Motion
- NES General Science: Newton's Laws
- NES General Science: Analyzing Forces
- Mechanical & Electromagnetic Waves
- Basics of Electricity & Magnetism
- Intro to Cellular Biology
- NES General Science: Traits of Living Organisms
- NES General Science: Plant Structures & Functions
- NES General Science: The Circulatory System
- NES General Science: The Nervous System
- NES General Science: The Immune & Endocrine Systems
- NES General Science: Other Physiological Systems
- NES General Science: Reproduction & Development
- Principles of Genetics
- NES General Science: Evolution
- NES General Science: Ecosystems
- NES General Science: Earth Materials
- NES General Science: Rocks & Minerals
- NES General Science: Historical Geology
- NES General Science: Erosion, Weathering & Wasting
- NES General Science: Earth's Structure & Processes
- NES General Science: Plate Tectonics
- Intro to Earth's Hydrosphere
- Basics of the Atmosphere, Weather & Climate
- Overview of the Solar System & Universe
- NES General Science Flashcards