Uploaded March 2013 | Updated September 2026, 2 weeks ago

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**Please note, all worksheets, diagrams, and other science resources can no be found in my free Earth Science app - grab it now at EarthScience.Glideapp.io. A quick tutorial on how to use Keynote to make a numbered set of iPad wallpapers for use in a classroom. Visit my website at MikeSammartano.com to check out recent blog entries, videos, and more, including worksheets to go along with my science videos. Additional science videos and resources at: https://science.glide.page
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