Khan Academy
Khan Academy: Convert Units Word Problems (Metric)
Solve word problems that involve converting between metric measures of distance, volume, and mass, as well as measures of time. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...
Science Education Resource Center at Carleton College
Serc: Density of a Penny
Middle schoolers learn how to measure the volume and mass of an object and use that to compute density. They will then use that density to talk about experimental errors and accuracy of measurements.
Math Is Fun
Math Is Fun: Measuring Metrically With Maggie
Metric units for volume, mass, length and temperature are explained to a cute little alien called Maggie. There are lots of real life examples for comparison that younger children will understand.
Science Struck
Science Struck: Metric System Chart for Kids
This resource explains the structure of the metric system of measurement; the basic units of measurement for length, volume, and mass; and provides charts for each type of measurement. A chart of customary US units is also given.
Other
All math.com: Us/metric Conversion Tables
Convert metric measurements to U.S. Measurements and the reverse, too. Easy to follow tables have sections for area, length, mass,temperature and volume.
Oswego City School District
Regents Exam Prep Center: Metric Conversions and Rates
Find out all about measurement in this test prep lesson exploring English and metric measurement. Students can compare metric and customary measurements using the conversion charts, assess how much they have learned using the interactive...
Other
Online Conversion
Conversion calculators galore! Convert just about anything from one measureable unit into another measureable unit here with over two dozen calculators. Each of the links is specific to a measureable quantity. Some examples include...
Other
Allmath.com: Metric Converter
Use this converter to find equivalent units for a measure. You can convert measures for area, length, weight, temperature, and volume.
PBS
Pbs Mathline: Sand Babies (Pdf) [Pdf]
In this engaging lesson, students use a variety of measurement strategies in creating their own Sand Babies. Students explore standard and non-standard measurements, area, data collection and analysis, and graphing. Adaptations are...
Science Education Resource Center at Carleton College
Serc: Air Is Matter
It's difficult at times for younger students to realize that air has mass. Matter is something that has volume (takes up space) and has mass (*can be weighed). Air does take up space, even if we can't see it, and air has weight, even if...
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Comparing Densities of Different Liquids
This lab experiment has young scholars observe and compare the density of five different liquids while measuring mass and volume.
TeachEngineering
Teach Engineering: Determining Densities
Students will use two different methods to determine the densities of a variety of materials and objects. The first method involves direct measurement of the volumes of objects that have simple geometric shapes, while the second uses the...
Other
Federal Highway Administration: Si (Modern Metric) Conversion Sheet
Very complete chart of conversion factors for English to SI (metric) unit measurements and SI (metric) to English unit measurements. Includes length, area, volume, mass, temperature, illumination, and force & mass (stress).
TeachEngineering
Teach Engineering: Density Column Lab Part 1
In this first part of a two-part lab activity, students use triple balance beams and graduated cylinders to take measurements and calculate the densities of several common, irregularly shaped objects with the purpose to resolve confusion...
PBS
Pbs Learning Media: Matter's Physical Properties: Interactive Lesson
In this interactive lesson, learn what the "physical properties" of matter are and how can they be measured and observed.
Disfruta Las Matematicas
Disfruta Las Matematicas: Medida
This unit could be used as supplementary material for a topic on measurements. It has good examples with illustrations and some interactive activities.
National Institute of Standards and Technology (NIST)
International System of Units: Si Base Units
This is the definitive source for information on SI base units, derived units, squares, cubes, luminosity, field strength and flux density.
Other
Unit conversion.org: Online Unit Converter
Need a unit converter? Links to the most common converters provide access to the answers you need quickly.
Khan Academy
Khan Academy: Unit Reasoning Lesson
Unit reasoning helps us make sense of measurements by converting between measurement units and making reasonable estimates. For the Praxis test, we need to know common measurement units for length, time, volume, and mass, as well as how...
Khan Academy
Khan Academy: Us Customary Conversion Word Problems
Practice US customary length, volume, and mass problems that require expressing measurements given in a larger unit in terms of a smaller unit. Students receive immediate feedback and have the opportunity to try questions repeatedly,...
SMART Technologies
Smart: States of Matter
This review of matter includes properties, volume, length, mass, and states of matter. Activities, games, and a Monster Quiz are include.
Doina Popovici
Math Play: 3rd Grade Halloween Math Game
Be ready to smash the monsters by solving problems involving volume, mass, and time in this math game.
Khan Academy
Khan Academy: Convert Units (Metrics)
Convert between metric measures of distance, volume, and mass. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
TeachEngineering
Teach Engineering: States of Matter
Students act as chemical engineers and use LEGO MINDSTORMS NXT robotics to record temperatures and learn about the three states of matter. Properties of matter can be measured in various ways, including volume, mass, density and...