Simon Fraser University
Chem1 Virtual Textbook: The Si Base Units
As part of the General Chemistry Virtual Textbook, this site examines a variety of topics related to the measure of matter. In addition to a discussion on SI base units, the site covers the SI decimal prefixes, units outside the SI, and...
National Institute of Standards and Technology (NIST)
National Institute of Standards and Tech: Si Prefixes
The official prefixes adopted in the US, as stated by the National Institute of Standards and Technology. Yoctograms? Zeptosecond? Yes indeed.
Simon Fraser University
Chem1 Virtual Textbook: Error and Uncertainty in Measured Values
As part of a larger site called "Getting started in Chemistry," this site examines various topics related to measurements and the error and uncertainty that accompanies the methods of measurements.
National Institute of Standards and Technology (NIST)
Nist: Rules & Style Conventions for International System of Units (Si)
The official rules for using the SI (metric) system in the US, based on the National Institute of Standards. Must download their handbook.
CK-12 Foundation
Ck 12: Units of Measurement
[Free Registration/Login may be required to access all resource tools.] Students will learn how to use standard scientific units of measurement (SI units) in biology.
Wisc-Online
Wisc Online: Physics: Radiation Quantities and Units
Play ball using your knowledge of radiation quantities and units.
Other
Houston Community College: Physical Quantities and Units
Learn about physical quantities, SI units, and derived units in this chapter of a physics of textbook.
CK-12 Foundation
Ck 12: Biology: Units of Measurement in Biology
[Free Registration/Login may be required to access all resource tools.] Covers standard scientific units of measurement.
CK-12 Foundation
Ck 12: Plix: Si Base Units
[Free Registration/Login Required] In this interactive you must connect the correct quantity with an example of the SI base unit it is measured in. You will need a sign-in to access this media, but it will be well worth your time.
CK-12 Foundation
Ck 12: Physical Science: International System of Units
[Free Registration/Login may be required to access all resource tools.] International System of Units (SI) and converting units.
CK-12 Foundation
Ck 12: Physical Science: International System of Units
[Free Registration/Login may be required to access all resource tools.] International System of Units (SI) and converting units.
Texas Education Agency
Texas Gateway: Ap Physics: Introduction to Physics Summary Section
This page offers a summary of each section in Chapter 1: Introduction to Physics of the AP Physics online text. It covers the main concepts such as Physical Quantities and Units and Approximation.
Texas Education Agency
Texas Gateway: What Is Physics?: Section Summary
This is a summary of the most important takeaway ideas from Chapter 1: What is Physics? from the TEA Physics text.
Chiral Publishing
Chiral Publishing: An Introduction to Chemistry: Conversion Factors
Check your knowledge of conversion factors in this interactive practice activity. Practice unit conversions by filling in the number that completes them.
CK-12 Foundation
Ck 12: Physical Science: International System of Units
[Free Registration/Login may be required to access all resource tools.] Covers the International System of Units (SI) and converting units.
A&E Television
History.com: History This Week: The Mother of Level Measurements
September 24, 1902. A new cooking school is set to open at Boston's 30 Huntington Avenue. The rooms will soon be filled with trainee cooks, who will watch in awe as the school's namesake and principal, Fannie Farmer, lectures on...
Math.com
Math.com: Energy/work Equivalents
A tool for converting values between units of measurement for energy and work.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Metrics in the Home and in the Store
For this lesson plan site, students will compare SI unit (metric) measurements of common household items and their English equivalents.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Metric System
This lesson plan familiarizes students in grades 4-6 with using the metric system and performing conversions.
Other
Wfp Consulting: Si Navigator
A commercial site which has links to many SI/metrics sites. It gets you to a host of sites. Don't hesitate to use it for research.
Other
St. James Public Schools: Measurements and Metrics
Test your knowledge of measurements and metrics by taking this ten-question self-scoring practice quiz.
National Institute of Standards and Technology (NIST)
International Systemn of Units (Si)
The official sources from which NIST forms its decisions for "official usage". Most useful if you're doing serious research about SI.
Sophia Learning
Sophia: Practice Determining Base vs. Derived Quantities: Lesson 4
This lesson should help a learner to practice recognizing base and derived units. It is 4 of 4 in the series titled "Practice Determining Base vs. Derived Quantities."
Sophia Learning
Sophia: Practice Determining Base vs. Derived Quantities: Lesson 1
This lesson should help a learner to practice recognizing base and derived units. It is 1 of 4 in the series titled "Practice Determining Base vs. Derived Quantities."