HEATING AND COOLING IN ROCKS

1 The sun is directly on the rock during the day, this makes the rock get very hot.
2 The intense heat from the sun causes the particle which make up the rock expand.
3 The rock starts to crumble because the particles have broken up.
4 This continues over millions of years and at the end you are left with sand.

BY ROCHELLE LOUISE WHITTAKER~McCALLA

ASAS PART OF THE SCIENCE DEPARTMENT

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