Primary tabs Upcoming Month Week Day Remind Me Setup Reminder Want to be reminded about this event? Complete the form below to have an email notification sent to you 24 hours prior to the event. Email Add To My Calendar Add This Event To Calendar Don't forget about this event. Add it to your calendar. Add to Google Calendar Add to iCal Print Share Share This Event Let your friends know about this event! Share it on social media. Facebook Twitter Email Program Type: Featured, Science/STEAM Age Group: Elementary School Age Program Description Event Details Test your design and engineering skills in this special Valentine's Day-themed STEM challenge! Build a tower in the shape of a heart using nothing more than red cups and strips of cardboard.