Discover chemical eruptions in a classic baking soda and vinegar experiment!
Come & go style activities (can come anytime between 10:30-11:30)
Free with admission or membership
*** Age range: 2yrs – 4yrs
for employee enrichment and planning day.
We will be resuming normal hours Saturday, November 14.
Thank you!
The museum will be closing at 4 pm for a private event.
Thank you.
featuring: Engine Room demonstrations, vintage vehicle rides, special interactive STEM activities and Museum exhibits and collection highlights.
Come spend the day at with us and enjoy a great lineup of activities for the whole family.
Due to the inclement weather this weekend the Exhibitor Rally Season Finale has been canceled.
We will be open for auction pickup & drop-off ONLY.
Regular hours will resume Tuesday, Aug 25. Thank you.
-The OHTM team
We will reopen Saturday at 10 am for the WINGS & WHEELS Airshow.
The Science & Industry Center will reopen for the Junior Inventors program from 4:30 PM-6:30 PM.
October 26, 2026 6:45 pm
The museum will be closed today for a staff retreat. We will return to normal hours starting tomorrow, Saturday, May 2nd at 10 AM.
