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This is an activity about the declining strength of Earth's magnetic field. Learners will review a graph of magnetic field intensity and calculate the amount by which the field has changed its intensity in the last century, the rate of change of its... (View More) intensity, and when the field should decrease to zero strength at the current rate of change. Learners will also use evidence from relevant sources to create a conjecture on the effects on Earth of a vanished magnetic field. Access to information sources about Earth's magnetic field strength is needed for this activity. This is Activity 7 in the Exploring Magnetism on Earth teachers guide. (View Less)
This lesson is about data collection. Learners will investigate different methods of sampling in a simulated cleanroom environment. Includes a teacher's guide and students handouts. This lesson 7 of 10 from the Dynamic Design: The Cleanroom module.
This is a lesson that uses the study of sunspots to show how a scientific theory develops and how current technology might be used to support it. Learners will use E.W. Maunder's theory regarding the correlation between the numbers of sunspots and... (View More) Earth's climate by considering a set of clues based on Maunder's data. Three activities are included, starting with graphing over 387 years of sunspot data, investigating climate and possible sunspot connections to literature, history and the arts, and, finally, introducing what tree rings can tell us about climate history. (View Less)
This is an activity about the solar cycle. Learners will use X-ray data from the Geostationary Operational Environmental Satellite (GOES) and record the total number of solar flares in their birth month over the course of eleven years and compute... (View More) the percentage of high-energy X-ray flares which occur for each year. Learners will graph their findings to help them identify the long term pattern of flare activity on the Sun. (View Less)
This resource introduces the concept of wind chill, the formula used to measure it and relates it to the causes of hypothermia. A simple experiment using a pie pan, sand, fan and a thermometer demonstrates this concept. The resource is from PUMAS -... (View More) Practical Uses of Math and Science - a collection of brief examples created by scientists and engineers showing how math and science topics taught in K-12 classes have real world applications. (View Less)