Milestones for Mount St. Helens

May 18, 2020 marks the 40th anniversary of the 1980 eruption of Mount St. Helens. Yet, how did this eruption compare to other eruptions in the lifespan of this volcano? How old is Mount St. Helens? How frequently has Mount St. Helens erupted in the past? Learn about important milestones in the eruptive history of Mount St. Helens through our interactive timeline activity.

Grades: K-5 (learners of all ages are welcome!)



  1. You will need: 
    • cardboard or colored paper
    •  measuring tape or ruler (optional)
    • calculator
    • markers or other coloring supplies
    • yarn or string (optional)
    • You can also print out this worksheet, but it is not required.
  2. Click on the YouTube video below to join us for an activity.
  3. Complete a weekly challenge (or both) at home or in your neighborhood.
  4. Use the form at the bottom of this page to..
  • Send us your questions and 
  • Send us photos, videos, or your other creations!

We are excited to hear from you! 

Keep scrolling down to send us your questions and your weekly challenge creations!  You may also email us at