APES unit 4 review

Students want to determine how vegetation affects soil erosion. They collect four soil samples of equal starting mass with different types of vegetative cover, as seen in the table below. Each sample is placed in a three-sided plastic dish that can drain into a beaker and is exposed to the same amount of consistent, steady rainfall for ten minutes. The water and soil runoff are collected in the beaker and separated. The average values for each sample are provided below.

Which of the following is the control group for this experiment?

• Soil with no grass

• Soil with newly sprouted grass

• Soil with mature grass

• Soil with dead grass

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

A group of students wanted to determine if soil texture can vary by location. Several students brought in a sample of soil from their backyards. Each student added their soil sample of equal mass to a jar with exactly the same amount of water, shook the contents so that all soil particles were suspended in the water, and left the jars covered overnight. The next morning, the soil particles had settled out into layers and students could determine the percentage of each type of particle. The results of their soil test are shown below.

Which of the following describes the dependent variable in this investigation?

• Percentage of each particle size in each soil sample

• Soil samples taken from different locations

• Time required for each soil sample to settle

• Addition of water to each soil sample

Which of the following best describes a transform boundary?

• An area where two tectonic plates move away from each other

• An area where two tectonic plates slide past one another

• An area where two or more tectonic plates collide

• An area where two or more tectonic plates fuse together at a suture zone

Most volcanism in the world is associated with

• plate boundaries

• midcontinental hot spots

• faulting

• hotspots

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

Which soil horizon has very little organic matter and accumulates soluble metals and nutrients that are transported from other soil layers?

• a

• b

• c

• d

Corn is a crop that grows best in soil that drains well.

Which of the following soils is best suited to grow corn?

• Clay because it has at least 45% clay so it absorbs water very well.

• Silt loam because it is about 80% silt and has low amounts of sand.

• Sandy loam because it has large amounts of sand and less than 20% clay.

• Silty clay loam because it has all three soil components.

Tags

NGSS.MS-LS1-5

Based on the soil texture triangle, which of the following would describe soil that was 25% clay, 25% silt, and 50% sand?

• loam

• clay loam

• sandy loam

• sandy clay loam

Which of the following correctly characterizes one of Earth’s atmospheric layers?

• Layer A is the stratosphere, where meteors are found.

• Layer B is the troposphere, where weather occurs.

• Layer C is the stratosphere, where the ozone layer is found.

• Layer D is the thermosphere, where auroras are found.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

The most abundant gas in Earth's atmosphere is

• nitrogen

• oxygen

• water vapor

• carbon dioxide

Most of the Earth's deserts are at approximately 30° latitude, north and south, because these latitudes are characterized by

• generally warm ocean currents

• predominantly low atmospheric pressure

• descending dry air currents

• slow-moving jet streams

Tags

NGSS.MS-ESS2-6