Natural Sciences and Technology Grade 5-B ... - Thunderbolt Kids

This is how the mountains look now. Draw on this picture to
show what the mountains looked like millions of years ago.
QUESTIONS:
1. The rock and sand are being removed from the mountains.
How does this happen?
This is due to erosion rain water and the wind over many
millions of year.
2. Where does the rock and sand go?
It is washed down the mountain in the river and deposited on
the banks lower down or in the sea.
3. Draw on the diagram to show how the mountain might have
looked many years ago, before the rock and sand were
eroded.
Learners should draw a higher mountain without valleys and
rocks crumbling away and falling down.
Dierent kinds of sedimentary rock
There are many kinds of sedimentary rock. Here are three kinds:
1. Sandstone is made from grains of sand that are cemented
together.
134 Earth and Beyond