About This Chapter
ILTS Biology: Measurement & Observation - Chapter Summary
These lessons offer a review of scientific techniques for measuring and observing before taking the ILTS Biology test. Concepts covered in this chapter include:
- Exploring laboratory measurement units and types
- Converting measurements to the metric system
- Naming the components of the compound microscope
- Defining a meniscus
- Submerging objects to find volume by displacement
- Applying different microscopy types
You can watch these short video lessons anytime you have a few minutes, on a computer, smartphone or tablet. The quizzes that follow each lesson let you assess your learning, and you can use the video tags to quickly jump back to specific parts of the lesson you need to review.
ILTS Biology: Measurement & Observation - Chapter Objectives
The ILTS Biology test looks at your understanding of basic biological concepts, including the basics for scientific lab research, in order to become a certified biology teacher in Illinois. There are six subareas on the exam, and the topics covered in this Measurement and Observation chapter can be found within the science and technology subarea.
All questions on the ILTS Biology exam are multiple choice, like the questions on our brief lesson quizzes. These quizzes let you experience answering questions in a format similar to those you'll face on test day.
1. Understanding Laboratory Measurements: Units & Types
There are many different units that can be used for measurements. This may not only lead to incorrect data measurements, but also to confusion about which units are most appropriate. Therefore, a standard set of units is used for each type of measurement in the biology lab.
2. The Metric System: Units and Conversion
Just like you and your friend communicate using the same language, scientists all over the world need to use the same language when reporting the measurements they make. This language is called the metric system. In this lesson we will cover the metric units for length, mass, volume, density and temperature, and also discuss how to convert among them.
3. 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.
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. 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.
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.
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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: Biology Lab
- ILTS Biology: The Origin of Life on Earth
- ILTS Biology: Biological Evolution
- ILTS Biology: Diversity of Life
- ILTS Biology: Cell Cycle & Division
- ILTS Biology: Plant Cells
- ILTS Biology: Protists, Fungi & Viruses
- ILTS Biology: Plant Anatomy & Physiology
- ILTS Biology: Plant Reproduction & Growth
- ILTS Biology: Social Behavior of Animals
- ILTS Biology: Major Human Body Systems
- ILTS Biology: The Nervous, Immune & Endocrine Systems
- ILTS Biology: Reproduction & Development
- ILTS Biology: Properties of Matter
- ILTS Biology: Phase Changes for Liquids & Solids
- ILTS Biology: Atomic Structure
- ILTS Biology: The Periodic Table of Elements
- ILTS Biology: Bonding
- ILTS Biology: Acids, Bases & Chemical Reactions
- ILTS Biology: Stoichiometry & Chemical Equations
- ILTS Biology: Equilibrium
- ILTS Biology: Solutions
- ILTS Biology: Gases
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- ILTS Biology: Newton's Laws & Motion
- ILTS Biology: Linear & Angular Momentum
- ILTS Biology: Direct Current Circuits
- ILTS Biology: Work, Energy & Power
- ILTS Biology: Thermal Physics & Thermodynamics
- ILTS Biology: Atomic, Nuclear & Quantum Physics
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- ILTS Biology: Magnetism
- ILTS Biology: Waves, Sound & Light
- ILTS Biology: Earth's Spheres & Internal Structure
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- ILTS Biology: Minerals & Rocks
- ILTS Biology: Changing Earth's Surfaces
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- ILTS Biology: The Hydrosphere
- ILTS Biology: The Solar System & the Universe
- ILTS Biology: Atmospheric Science
- 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
- ILTS Biology: DNA Transcription & Translation
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- ILTS Biology: Genetic Engineering & Cloning
- ILTS Science - Biology Flashcards