This specific STEM challenge can be completed in a short amount of time with younger kids, but you can also add layers of complexity to it for older kids!
In all honesty, it doesn’t need to be 100 cups! Whatever you have is fine. Don’t limit the challenges! Ask the kiddos how tall they want to build it and see if they can do it!
TIME NEEDED: At least 15-20 minutes is usually a good time allotment if you need to keep track of the clock, but it can also end up being an open-ended exploration.