Children’s Museum Houston

Slime Off!

Saturday, Oct. 26, 2019 – Saturday, Oct. 26, 2019


Calling all mortals and monsters!  Witness two teams as they get totally slimed in the Children's Museum of Houston's 3rd Annual "Slime Off!"  Catch a slippery, slimy and sloppy dose of gross as two teams compete in a series of sticky challenges. Come support these brave souls as they brave being doused with 15-gallons of green ooey-goey concoction. Don’t forget your goo goggles!

Event time: Oct. 26, 2019 


  • Mad Science Shows: Catch Mad Science Houston put on a slime-tacular spooky fun science show.
    • Event time: 11 a.m., 12 p.m. and 1 p.m. in Brown Auditorium
  • Slime Workshops: It's all in the recipe. Brew your slimey goo and learn the science behind slime in this special workshop for kids 6+. Pre-registration required.
  • 3rd Annual Slime Off!: Support the brave souls that will compete in a series of sticky challenges or be one of them! Who will get slimed with 15 gallons of ooey gooey concoction this year?!
    • Event time: 2:30 p.m. in the Courtyard
    • Registration will be onsite between 11 a.m. and 1 p.m. in the Courtyard.*

*Please note: Must be between 8 and 13 years old to participate in Slime Off.  Registration does not guarantee space. Names of selected children will be drawn at 1:30 p.m. in the Courtyard. Must be present to be selected. Once selected, parents must sign a waiver form.

**Activities, events and times subject to change.

  • Trick-or-treat daily! 4 - 6 p.m. weekdays, 4 - 8 p.m. Thursdays, and all day weekends thru Halloween Night!
  • Meet some new friends during Creepy Crawly Creatures on Oct. 12
  • Join the ghoul group for a day of ghastly costumes, weird workshops and monstrous moves during Zombies, Ghosts and Ghouls on Oct. 19
  • Move your bones to funky tunes at our spooktacular Halloween Happy House on Oct. 31 (open until 8 p.m.) 

Check out our web calendar for a full dose of Halloween events.



  • Tuesday - Saturday, 10:00 am - 6:00 pm
    Thursday, 10:00 am - 8:00 pm
    Sunday, Noon - 6:00 pm
    Open Monday during Spring Break, Memorial Day, Fourth of July and Labor Day. Summer: Open Mondays Memorial Day through Labor Day. Closed Easter Sunday, Thanksgiving Day, Christmas Day and New Year's Day.  
  • General Admission: $12 per person and $11 for seniors 65 years and older. FREE for children under one and Museum Members. Free Hours: FREE FAMILY NIGHT: Thursdays 5 pm - 8 pm.

Directions & Parking

  • Paid Parking
  • Street Parking
  • Parking fees: 1 hour - $7 2 hours - $8 3+ hours - $9 Metered and street parking are available around the Children's Museum Houston.

Special Offers / Dining

The Children's Museum Houston's spacious eatery, Fresh Café, offers nutritious eats and treats for any time of day! Enjoy a healthy meal with savory salads, preservative-free sandwich bread and vegetarian options prepared daily – fresh off the grill!

Events at Children’s Museum Houston

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