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This is a lesson to introduce the Kp index, a common numerical indicator of magnetic storminess. Learners will access and analyze Kp index plots of magnetic storm strength and determine the relative frequency of stronger versus weaker magnetic... (View More)

Audience: High school, Higher education
Materials Cost: Free

This is an activity about the periodic reversals of Earth's magnetic field. Learners will graph the frequency of magnetic pole reversals over the past 800,000 years and investigate answers to questions using the graphed data. This is Activity 8 in... (View More)

This website serves as an online textbook about the Earth's magnetosphere and was developed by a retired space physicist. The emphasis of the site is on the history, conceptual understanding, and basics relating to electrons, ions and their motion... (View More)

This is an activity about the detection of magnetic storms. Learners will plot the locations of magnetic observatories in Canada and analyze the magnetic intensity for each station, looking for the difference between stable magnetic activity and the... (View More)

Audience: High school

This is an activity about the magnetic deflection. Learners will observe and measure the deflection that an iron mass causes in a soda bottle magnetometer and plot the data. The data should show the inverse-square cube law of change in the magnetic... (View More)

Audience: High school

This is a lesson to investigate auroras. Learners will plot and compare the amount of energy dissipated by auroras in the northern hemisphere with the recorded Kp index of magnetic storm severity. This is the sixteenth activity in the Exploring the... (View More)

Audience: Middle school

This is a mathematical lesson utilizing algebra to investigate Earth's magnetosphere. Learners will solve algebraic distance equations that will show how the distance to the Earth's magnetopause depends on the incoming solar wind pressure. This is... (View More)

Audience: High school

This is a lesson about the mathematics of auroras. Learners will be exposed to the mathematical formulas that are used to estimate how much magnetic energy is available in the magnetic tail region of Earth. This is the nineteenth activity in the... (View More)

Audience: High school

This is an activity about the effect of solar storm events on Earth's magnetic field. Learners will construct a soda bottle magnetometer, take it home, collect data over the course of three days, and analyze the results from several of these data... (View More)

Audience: Middle school

This is an activity about auroras. Learners will use images from the IMAGE (Imager for Magnetopause-to-Aurora Global Exploration) satellite and measure the diameter of aurora ovals to identify if there is a correlation between severe magnetic storms... (View More)

Audience: High school