Soil erosion
What is soil erosion?
Soil erosion is the loss of soil by water or wind.
What is a gully?
A gully is a ditch the is formed by dirt and water.
What is a land form?
A land form is a natural formation of rock or soil on the earth's surface.
True or False...Rocks are only found on high places?
False
What is in soil?
Minerals and humus.
What would form after soil erosion?
A gully
Does fertilizer contain different kinds of Minerals and nutrients for the soil?
Yes
What is the beginning of a river called?
A source.
What rocks are made by heat?
Magma
What is a mineral?
A mineral is a substance or material in the earth that has never been alive.
What does a wise farmer do to prevent soil erosion on a hill?
He would plant crops.
What does fertilizer do?
It returns the minerals that the plants took out.
often moutaintops are covered with snow because of cold temperatures there. The snow melts and the water trickles down into little streams . What is this called?
A water runoff.
What happens to a rock when it's under pressure?
It becomes harder.
If plants grow well in soil, what is it called?
Fertile
What does a farmer use to prevent soil erosion after a harvest?
A chissel plow.
why do farmers rotate there crops?
This way, some plants take away one year but the next year, they add.
What is the part of a river that flows into the ocean called?
The mouth
What was marble before it was marble?
Limestone used to be marble but it was under a lot of pressure.
Are rocks a mineral?
Yes
can you Name one method to prevent soil erosion? it starts with a t
tilling
What do farmers do to put minerals back in to the soil?
They rotate there crops every few years.
What 2 things are created by rivers (they are landforms)?
Waterfalls and Rapids
What is sediment?
It is the matter that settles at the bottom of a liquid or river.
What is the best kind of soil?
It is a mixture of different kinds of soil