EArth physical and chemical changes
STEVEN POWERS and ANTHONY FRANKLIN
mod 3
3/18/2014
objective
compare physical and chemical weathering and provide example if change caused in earth materail or FEATURES by earth of these PROCESSES
standard
2.0 earthbound space science
key vocab words
chemical weathering
physical weather
pHYsical weathering=WHEN AN OBJECT DISINTEGRATES PHYSICALLY
chemical weathering=WHEN CHEMICALS BREAK DOWN MATERIAL WITHOUT PHYSICAL CHANGE
the questions
1)what is chemical weathering?
2)what is the difference between chemical/physical weathering?
3)what are the positive effects of chemical weathering?
1)the erosion or disintegration of rocks, building materials, caused by chemical reactions rather than by mechanical processes
2)physical change occurs when objects makes changes physically without chemicals.also chemical weathering happens when an object changes with chemicals from the weather
3)the chemical weathering changes the land formations.
CHEMICAL AND PHYSICAL WEATHERING
By 8th Grade Science
