Rocks And Weathering Flashcards
Name 3 properties of metamorphic rocks
Hard
Shiny
Crystals
Non porous
Name 3 properties of igneous rocks
Interlocking crystals
Size depends on how quickly they cool
Never have fossils
Formed by volcanos
Name 3 properties of sedimentary rocks
They have layers The older layers are at the bottom They have small grains Porous Soft Crumbly May have fossils
What is weathering the process of ?
Breaking Down rocks
What are the three types of weathering
Physical
Chemical
Biological
What is freeze thaw weathering
Rain water fills up a crack in a Rick then freezes and expands the crack
What are the effects of chemical weathering
Dissolve rocks
Kills trees
Kill fish
Buildings can decay
What is erosion
The transportation of weathered rocks by wind glaciers and water
What is the difference between erosion and weathering
Erosion makes the rocks smaller smoother and rounder
Weathering is when rocks get broken down