About This Chapter
Praxis Biology: Laboratory Equipment & Measurements - Chapter Summary
Inside a classroom laboratory, students will want to be able to demonstrate the safe handling of all materials and equipment available to them. The video lessons contained in the Laboratory Equipment & Measurements chapter of this Praxis Biology course will ensure you have a solid grasp on everything in the lab so that your students will be comfortable with you as an instructor. This section of the course covers the following topics:
- Measuring with scales, meters and gauges
- Calculating with displacement
- Using a meniscus
- The compound microscope
- Microscopy types
- Microscope specimens
If a particular topic or lesson in the Laboratory Equipment & Measurements chapter is giving you any trouble, you can access it immediately by utilizing the timeline located below the video presentation. The chapter also contains a number of printable worksheets. If you'll be away from your computer for awhile, take them with you and review on the go in order to prepare for the actual exam.
1. What is Centrifugation? - Definition, Process & Uses
Astronauts, hospitals, and you depend upon centrifugation all of the time! This lesson will explain how centrifugation works and then will discuss some uses of the centrifuge. Following your exploration of that information, you can test your knowledge with a quiz.
2. How to Take Measurements with Scales, Meters & Gauges
In the real world, we take measurements all the time. Measurements are taken when you drive and when you weigh yourself, for example. Watch this video lesson to learn how you can take measurements of things that are important.
3. Using Displacement to Calculate the Volume of an Object
Determining the volume of an object is easy if that object is uniform and has a regular shape. For objects that are irregularly shaped, using the edges is not so straightforward, so instead we can measure the volume by displacement.
4. What Is a Meniscus? - Definition, Uses & Lab Examples
Liquids can be tricky to measure because surface tension causes them to do interesting things like forming a meniscus. In this video lesson you'll learn what a meniscus is, why it forms, and how to correctly read the volume of a liquid using the meniscus at the surface.
5. Introduction to the Compound Microscope: Parts & Uses
The compound light microscope is a useful tool in any biology laboratory. In this lesson, you'll be introduced to the parts of a compound microscope, as well as understand the function of each of those parts.
6. Microscopy Types & Applications
What is microscopy and how do we use it? Learn about the different types of microscopes and the ways we use them for practical purposes. You can then take a quiz and test what you've learned.
7. What is Chromatography? - Definition, Types & Uses
Chromatography is a versatile method of separating many different kinds of chemical mixtures. In this lesson, learn the different types and uses of the technique.
8. Dissection Techniques & Alternatives
In this lesson, we'll talk about the importance of dissection, and hopefully about how to enjoy it! We'll introduce some safety rules and tools, and alternatives to dissection as well.
9. How to Preserve, Stain & Mount Microscope Specimens
Microscopes are incredible tools for observing the tiniest of organisms. Here we will identify the types of slides that can be made and describe how to best preserve, stain, and mount specimens. At the end, you can test yourself with a brief quiz.
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Other chapters within the Praxis Biology (5235): Practice & Study Guide course
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- Praxis Biology: Science Principles - Hypotheses, Theories and Change
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- Praxis Biology: Science Principles - Interpretation and Models
- Praxis Biology: Laboratory Safety
- Praxis Biology: Molecular Structure Basics
- Praxis Biology: Chemical Reactions
- Praxis Biology: Biological Molecules and Processes
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- 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
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- Praxis Biology: Plant Biology
- Praxis Biology: Plant Reproduction & Growth
- Praxis Biology: Population Ecology
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- Praxis Biology: Human Impacts on the Environment
- Praxis Biology: Environment and Society
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