Changes to Earth’s Surface

Science — Second Preparatory

Common mistakes

Comparison aspect	Main idea	Keywords
Mistake	confusing weathering with erosion. Correct: weathering breaks rocks in place while erosion moves the broken material away	confusingweatheringerosionCorrect
Mistake	thinking that internal factors do not affect the surface. Correct: earthquakes volcanoes and plate movements change the shape of the surface	thinkinginternalfactorsaffect
Mistake	thinking that mechanical weathering changes the chemical composition of a rock. Correct: mechanical weathering breaks the rock without changing its composition	thinkingmechanicalweatheringchanges
Mistake	thinking that a delta formed in one day. Correct: deposition is a slow process that lasts thousands of years	thinkingdeltaformedCorrect

Changes to Earth’s Surface · 6 / 7