After exploring how rocks weather in the rain, students next spent some time investigating how blowing sand changes rocks' shapes. The purpose was to provide an opportunity for students to explore the action of wind as an agent that weathers, or breaks down rocks.In order to explore how wind serves as an agent of weathering. The students used "sandblasters" or enclosed environments where they could witness the movement of sand via wind. They first observed that sand moves differently depending upon how hard the wind is blowing. Next they became aware that rock can be broken down, or weathered, by particles carried by the wind. Students used their sandblasters to test the effects of blowing sand on a sugar cube tombstone.
The students test how wind and sand weather a sugar cube tombstone.
Los estudiantes probar cómo el viento y arena tiempo una lápida de cubo de azúcar.
