Florida Science Grade 6

Chapter 11: Weathering and Soil

Calculate Percentages

1
Horizons are the top layer of soil that form a soil profile. The A Horizon is known as topsoil. The B Horizon has less organic matter than the layer above it. And the C Horizon is the lowest level of soil containing partially weathered rock. Use the circle graph to calculate the percentage of A Horizon found in the sample.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/007869387x/161752/m506_002a_866621.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (2.0K)</a>

A)18.75%
B)25%
C)43.75%
D)56.25%
2
Horizons are the top layer of soil that form a soil profile. The A Horizon is known as topsoil. The B Horizon has less organic matter than the layer above it. And the C Horizon is the lowest level of soil containing partially weathered rock. Use the circle graph to calculate the percentage of B Horizon found in the sample.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/007869387x/161752/m506_002a_866621.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (2.0K)</a>

A)18.75%
B)25%
C)56.25%
D)43.75%
3
Horizons are the top layer of soil that form a soil profile. The A Horizon is known as topsoil. The B Horizon has less organic matter than the layer above it. And the C Horizon is the lowest level of soil containing partially weathered rock. Use the circle graph to calculate the percentage of C Horizon found in the sample.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/007869387x/161752/m506_002a_866621.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (2.0K)</a>

A)18.75%
B)56.25%
C)25%
D)43.75%
4
Horizons are the top layer of soil that form a soil profile. The A Horizon is known as topsoil. The B Horizon has less organic matter than the layer above it. And the C Horizon is the lowest level of soil containing partially weathered rock. Use the circle graph to calculate the percentage of A and B Horizon found in the sample.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/007869387x/161752/m506_002a_866621.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (2.0K)</a>

A)25%
B)18.75%
C)43.75%
D)56.25%
5
Plants use nutrients like nitrogen, phosphorus, potassium, sulfur, calcium, and magnesium to grow. These nutrients are present in soil at different levels. A soil chemist analyzed a soil sample to determine the weights of each nutrient. Use the circle graph to determine the percentage of phosphorus in the sample.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/007869387x/161752/m506_004a_866621.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (3.0K)</a>

A)9.375%
B)37.5%
C)12.5%
D)25%
6
Plants use nutrients like nitrogen, phosphorus, potassium, sulfur, calcium, and magnesium to grow. These nutrients are present in soil at different levels. A soil chemist analyzed a soil sample to determine the weights of each nutrient. Use the circle graph to determine the percentage of potassium in the sample.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/007869387x/161752/m506_004a_866621.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (3.0K)</a>

A)37.5%
B)25%
C)12.5%
D)45%
7
Plants use nutrients like nitrogen, phosphorus, potassium, sulfur, calcium, and magnesium to grow. These nutrients are present in soil at different levels. A soil chemist analyzed a soil sample to determine the weights of each nutrient. Use the circle graph to determine the percentage of sulfur in the sample.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/007869387x/161752/m506_004a_866621.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (3.0K)</a>

A)12.5%
B)25%
C)37.5%
D)45%
8
Plants use nutrients like nitrogen, phosphorus, potassium, sulfur, calcium, and magnesium to grow. These nutrients are present in soil at different levels. A soil chemist analyzed a soil sample to determine the weights of each nutrient. Use the circle graph to determine the percentage of calcium in the sample.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/007869387x/161752/m506_004a_866621.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (3.0K)</a>

A)9.375%
B)12.5%
C)25%
D)37.5%
9
Plants use nutrients like nitrogen, phosphorus, potassium, sulfur, calcium, and magnesium to grow. These nutrients are present in soil at different levels. A soil chemist analyzed a soil sample to determine the weights of each nutrient. Use the circle graph to determine the percentage of magnesium in the sample.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/007869387x/161752/m506_004a_866621.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (3.0K)</a>

A)9.375%
B)3.125%
C)12.5%
D)25%
10
Plants use nutrients like nitrogen, phosphorus, potassium, sulfur, calcium, and magnesium to grow. These nutrients are present in soil at different levels. A soil chemist analyzed a soil sample to determine the weights of each nutrient. Use the circle graph to determine the percentage of nitrogen in the sample.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/007869387x/161752/m506_004a_866621.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (3.0K)</a>

A)12.5%
B)25%
C)37.5%
D)9.375%
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