Class 4 Bridge the gap.

In small groups, we investigated using plastic straws, paper straws and pieces of paper to make a bridge for the Billy Goats to travel over to get to the sweet, juicy grass on the other side. The design was a group decision, but it had to stand up and hold a 100g weight (Little Billy Goat), 200g weight (Middle Billy Goat) and 500g weight (Big Billy Goat) to be a success. Two bridges held all three weights, one bridge held 100g and 200g, one bridge held 100g and one bridge collapsed!!