Exercises on lesson 2 4.1 grade 4

Write the scientific term of each of the following: A process in which rocks are broken down into smaller particles.

Write the scientific term of each of the following: A process in which small broken rocks move from a place to another by the help of wind or water.

Write the scientific term of each of the following: It is a type of caves that is formed when dissolved minerals of rocks combine again in new shapes.

Write the scientific term of each of the following: A process in which the sediments are dropped in a new location by the action of wind, water and gravity.

Write the scientific term of each of the following: A part of plant grows inside cracks of rocks causing its weathering.

Write the scientific term of each of the following: The condition of atmosphere at a specific time and place.

Write the scientific term of each of the following: It is a type of weathering through which acids of lichens dissolve minerals of rocks.

It is a process through which water forming ice in cracks of rocks.

A gas in air combines with iron of some rocks and causes its weakness.

Put (v) or (X): Plant roots help in the formation of rocks.

• v

• X