Build a LEGO® snowball slide

Difficulty: Medium
Age: 4-5, 6-8
Time (minutes): 15-20min
Number of people: 2+
Materials: A stopwatch, a marble, and some books or other stackable objects for holding up one end of your slide.

Welcome, contenders, to the coolest LEGO snowball slide tournament in the known universe. Put on your mittens, scarves, and woolly hats – and let’s roll. Specifically, let’s roll marbles awesomely slowly down a LEGO slide.