CK-12 Foundation
Ck 12: Measurement: Scale Factor to Find Actual Dimensions
[Free Registration/Login may be required to access all resource tools.] Use scale factor to find actual dimensions from scale models, drawings or maps.
CK-12 Foundation
Ck 12: Measurement: Scale Factor to Find Actual Dimensions
[Free Registration/Login may be required to access all resource tools.] Identify scale factor and use it when problem solving.
CK-12 Foundation
Ck 12: Geometry: Polygon Similarity Study Guide
[Free Registration/Login may be required to access all resource tools.] This study guide looks at similar polygons, scale factor (ratio), and triangle similarity.
PBS
Pbs: Scale City: Scaling Up Rectangles in the Real World
In this video, students explore Depression-era post office murals and modern outdoor murals to learn how artists use proportional reasoning and measurement to create large-scale paintings. The video ends with the question, "How do...
CK-12 Foundation
Ck 12: Geometry: Dilation
[Free Registration/Login may be required to access all resource tools.] In this lesson students recognize dilations and use scale factor to determine measurements. Students examine guided notes, review guided practice, watch...
US Environmental Protection Agency
Epa: Measuring P H Experiment
This is an activity that deals with acid rain. "This experiment will illustrate how to measure the approximate pH of chemicals in water using a pH indicator." It is easy to follow the comprehensive set of directions.
National Council of Teachers of Mathematics
Nctm: Figure This: Math Challenges for Families
Students, teachers, and parents alike will enjoy this challenging math site. It contains a clever brain teaser section plus creative problems related to algebra, geometry, measurement, numbers, statistics, and probability. A Spanish...
Museum of Science
The P H Factor
This is a great source of chemistry experiments and information dealing with pH. Learning objectives are provided to explain the basis for each activity. Japanese and Chinese versions are also provided.
NOAA
Noaa: Estuaries 101 Curriculum: Chemistry in an Estuary
This activity introduces students to the complex chemistry of estuarine water. Students investigate how chemical and physical water quality factors-pH, temperature, dissolved oxygen, and salinity-change and interact over varying time...
Texas Instruments
Texas Instruments: Do You Have a Temperature?
In this activity, students represent and analyze climate data. They use linear regressions to understand the relationship between temperatures measured in the Fahrenheit and Celsius scales and examine conversion factors.
US Environmental Protection Agency
Epa: Determining the P H of Common Substances
In this acid rain experiment the students will be "determining the pH of common substances." This is a great lesson plan for an experiment.