About This Chapter
Praxis Biology: Science Principles - Processes and Disciplines
The information in this chapter will give you a solid foundation in the processes and methods used in the scientific process. As you prepare for the Praxis Biology test, you will learn about how to design and perform a scientific experiment as well as engage in scientific research. These lessons will prepare you to correctly answer questions on the following topics:
- Scientific observation
- Formulating a hypothesis
- Experimental design
- Determining accuracy
- Reporting results of an experiment
- How chemistry, math and physics intersect with biology
Experienced instructors will guide you through the concise video lessons, offering examples to explain the concepts. You can test your knowledge and prepare for the exam with the quizzes included at the end of each lesson.
Praxis Biology: Science Principles - Processes and Disciplines Chapter Objectives
Many states require that candidates for teacher certification pass the Praxis examination in the subjects they wish to teach. The Praxis II Biology: Content Knowledge test is for teachers who want to work at the secondary school level. It consists of 150 multiple-choice questions and is available as a paper test or on computer. There is a time limit of two hours.
The test is divided into six sections. The questions on the topics covered in the Processes and Disciplines chapter are in the exam's first section, Basic Principles of Science. This section has 12 questions, which make up 8% of the total exam.
1. The Scientific Method: Steps, Terms & Examples
The scientific method is more than just hypotheses and experiments. In this lesson, we'll explore the themes and variations that make up the world of science.
2. What is Qualitative Observation? - Definition & Example
There are various ways we can observe things. We often use numbers in our observations, but we can also make observations using our senses. These are called qualitative observations, and they are the focus of this lesson.
3. What is Quantitative Data? - Definition & Examples
Watch this video lesson to find out the difference between saying you have seven apples and saying that those apples are delicious. You will learn about quantitative data and why it is useful.
4. Experimental Design in Science: Definition & Method
What are the requirements of a scientific experiment? How do scientists turn hypotheses into theories and laws? Learn the answers to these questions and more in this lesson on the design of scientific experiments.
5. Developing a Scientific Hypothesis
This video describes how to create a hypothesis and includes the three main things needed to create a strong hypothesis. You'll learn how to make a clear statement that can be both tested and measured.
6. Identifying Potential Hypotheses from a Given Experiment
Experimental designs are dependent on good hypotheses. But we can also look at it the other way and identify a hypothesis from an experiment. In this lesson, we'll work through this process, showing you how to dissect an experiment to identify what is being tested.
7. Designing an Experiment to Test a Given Hypothesis
A well-written hypothesis is the key to any well-designed experiment. In this lesson, we'll work through the process of designing an experiment based on the hypothesis it's meant to test and see how the two work to complement each other.
8. Understanding Whether Experimental Designs Match Hypotheses
Hypotheses and experimental design are two peas in a pod. How you write your hypothesis will greatly influence how you design your experiment. In this lesson, learn about the types of experiments you may run and how you can match your hypothesis to the appropriate one.
9. Variables & Controls in a Science Experiment
After watching this video, you will be able to explain how science experiments are conducted; what variables, controlled variables, and controls are: and why these things are important. A short quiz will follow.
10. Drawing Logical Conclusions from Experimental Data
Experimental results are what scientists like to share with each other, but it's important to understand what those data mean. We do this in the final step of the experimental process, when we draw meaningful conclusions from the results we obtained.
11. Presenting the Scientific Process Orally or in Writing
Part of being a good scientist involves sharing your work with others. Two of the most common ways this is done is through written works and oral presentations, both of which require a certain amount of care and skill.
12. Print & Electronic Sources for Scientific Research
Sources provide you with helpful background information that support your own work. You can find sources both online and in printed materials. There are benefits and drawbacks to each, so you'll need to consider which is best for you and your project.
13. Scientific Sources: Accuracy, Reliability & Validity
It's important to use other sources to support your work, but what's even more important is to use the right ones. Sources should be valid, reliable, and accurate, but it's not always easy to tell which ones meet these criteria.
14. The Role of Mathematics in Biology
Mathematics is applied in all major fields of science, including biology. Here, we investigate the different applications of mathematics in biology and explore some examples.
15. What is Chemical Biology?
What's the difference between chemical biology and biochemistry? Learn what chemical biology is, and how it may lead to future medical advances. Then see how much you've advanced by taking a quiz.
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Other chapters within the Praxis Biology (5235): Practice & Study Guide course
- Praxis Biology: Science Principles - Hypotheses, Theories and Change
- Praxis Biology: Science Principles - Numbers
- Praxis Biology: Science Principles - Interpretation and Models
- Praxis Biology: Laboratory Safety
- Praxis Biology: Laboratory Equipment & Measurements
- Praxis Biology: Molecular Structure Basics
- Praxis Biology: Chemical Reactions
- Praxis Biology: Biological Molecules and Processes
- Praxis Biology: Cellular Energy Flow
- Praxis Biology: Cell Structures and Functions
- Praxis Biology: Cellular Division
- Praxis Biology: DNA and Replication
- Praxis Biology: RNA and Gene Expression
- Praxis Biology: Mutations and Other Genetic Changes
- Praxis Biology: Biology Lab Techniques
- Praxis Biology: DNA Technology
- Praxis Biology: Genetics and Inheritance
- Praxis Biology: Human Genetics
- Praxis Biology: Species, Populations and Evolution
- Praxis Biology: Origin of Life on Earth
- Praxis Biology: Classification of Organisms
- Praxis Biology: Human Anatomy and Physiology
- Praxis Biology: Immunology
- Praxis Biology: Animal Reproduction and Development
- Praxis Biology: Plant Biology
- Praxis Biology: Plant Reproduction & Growth
- Praxis Biology: Population Ecology
- Praxis Biology: Ecosystem Ecology
- Praxis Biology: Human Impacts on the Environment
- Praxis Biology: Environment and Society
- Praxis Biology Flashcards