C2.4.2 sedimentary rocks Flashcards
1
Q
What are the main factors which change one rock into another
A
heat, pressure, weathering and erosion
2
Q
How are sedimentary rocks formed
A
Sedimentary rocks are formed from sediments that have settled at the bottom of a ocean
and have been compressed over millions of years.
3
Q
PROPERTIES OF SEDIMENTARY ROCKS
A
POROUS- MADE UP OF SMALL GRAINS STUCK TOGETHER MEANING THERE ARE HOLES
SOFT EASY TO BREAK APART THE SEDIMENTS
4
Q
WHAT ARE SEDIMENTARY ROCKS USED FOR
GIVE 2 EXAMPLES
A
BUILDING MATERIALS
E.G SANDSTONE AND LIMESTONE