A Study of Erosion, Weathering - Grade 4 @ Muir
What's the difference between weathering and erosion?
What forces formed the Grand Canyon?
What materials withstand the test of time when outside?
These were just some of the questions a group of fourth graders researched and studied this spring.
Using just one material of their choice, plus glue and/or tape, students built a structure. Students placed their completed creations outside for a month, checking them weekly.
They were surprised at most of the results (although they predicted the "melting" of the sugar cubes!)