weathering
rates of weathering
Soil conservation
bedrock to soil
random
100
Limestone caves are mostly formed by which type of weathering?
Chemical weathering
100
How could differential weathering form this water fall?
The top layer of rock weathers much slower than the lower layers. so once the water reaches the lower layers it can errode them quickly, forming a waterfall.
100
What is erosion?
Erosion is when rocks and soil are moved from one place to enother by natural forces (wind, water, gravity)
100
what is the layer of rock below the soil called?
Bedrock
100
What is the only pixar movie to include a scene that wasn't animated?
Wall-E
200
A plant's root forcing open a crack in a rock is which type of weathering.
physical weathering
200
why do rocks weather faster if the temperature fluctuates up and down alot.
Ice wedging. also thermal expansion.
200
What are cover crops
crops planted between harvests of the main crop. They help protect the soil from wind and rain, and can replace nutrients in the soil.
200
what is soil fertility?
the amount of availible nutrient in the soil.
200
What does the word Coyote (an Aztec word) mean?
Trickster.
300
what is abrasion?
when things rub against eachother and wear away.
300
How does the surface area of a rock affect how fast it weathers.
The more surface area a rock has the faster it weathers.
300
What are the two ways soil can be lost?
Erosion and soil damage.
300
what are the three sizes of rocks in soil?
Sand silt and clay.
300
who was the first man on the moon?
Neil Armstrong
400
what is the process of Ice wedging?
water enters cracks. It freezed and expands, expanding the crack. It then melts and the process repeats.
400
How does moisture increase the speed of weathering.
chemical weathering happens faster when water is present. Ice wedging also needs water to occur.
400
What are the four components of soil?
Air, water, minerals(rocks), and humus.
400
PH ranges from 1 to 14 with 7 being neutral. What do we call a PH less than 7 (between 7 and 1)?
Acidic
400
what does the word clandestine mean?
Secret
500
Acid disolving rocks is what type of weathering?
Chemical weathering
500
Why might a rock on a steep slope weather faster than one on flat ground.
on a slope water moves faster, other rocks can fall on it. It could be more exposed to wind and rain.
500
How does no-till farming help preserve soil?
the left behind stems and plant parts protect the soil from wind and rain. when they decompose some of the nutrients are returned to the soil.
500
what is the dead plant and animal part of soil called.
Humus
500
what species of bird has the longest wingspan.
the Albatross.