Add to My Calendar Print Share Add This Event To Calendar Don't forget about this event. Add it to your calendar. Add to Google Calendar Add to iCal Share This Event Let your friends know about this event! Share it on social media. facebook twitter email Program Type: Early Elementary, Elementary, S.T.E.M./Maker Age: Child Allowed Grades: Kindergarten to 6th Grade Registration for this event has closed. Use different building materials to complete the secret challenge!