Chapter 11: AP Environmental Science in the Lab

________ is associated with limestone deposits but is not common in other soils, rocks, or minerals.

________ is applied to roads and parking lots and can run off into streams.

A(n) ________ may be used to measure turbidity, but a more accurate measure can be made with a turbidity unit.

A(n) ________ can be used to try to wash the contaminant from the air column.

________- common name for a compound that contains one of the potassium oxides.

When the ________ is inserted into the spectrophotometer, the instrument passes light through the ________ and measures the amount of light that passed through or was absorbed.

________ necessary for plant growth is unavailable when the soil becomes alkaline.

________ is also high in nutrients.

Drinking water should show no ________ from the water sample.

________- the movement of gas or liquid through the soil.

________- Any bacteria that ferments lactose and produces gas when grown in lactose broth.

Percent ________- A measure of soluble organic constituents of soil; the higher the number, the better.

The ________ or KI sample changes color in the presence of ozone and becomes more intensely colored as the amount of ozone increases.

Nitrates- As a(n) ________, nitrogen is typically found in fertilizer and is a component of runoff from agricultural lands.

Buffering capacity- Resilience of different types of bedrock, such as ________, granite, and basalt, when exposed to acid.

________ dictate that Cl can not exceed 250 mg /L.

________- An important plant nutrient, typically found in fertilizer and runoff from agricultural lands.

________: In this lab, a commercial sampling device is used to determine the amount of carbon dioxide in an air sample.

________ can be observed with a spectrophotometer.

________: In population growth experiments, often other variables are added to samples of bacteria to compare the growth of a normal population to one that has been altered in some way.

________: A model of a scrubber can be constructed to attempt to remove sulfur contaminates from burning coal.

________: Insects can be counted in an area and then plotted to assess biodiversity.

________: A lichen survey can be used to judge air quality.

They identify the organisms that are producers, ________, and secondary consumers and determine how many levels make up the food chain, what organisms act as decomposers, and the presence of symbiotic relationships.

________ composed of calcium, magnesium, or iron.

________ are sensitive to air pollution, particularly sulfur dioxide.

________ has qualities of both sand and clay.

________ is more than 121 ppm, and soft water is less than 20 ppm.

________ has high calcium content and is a better buffer than other rocks.

________ and Bacteria: When studying bacteria, ________ is commonly observed and recorded.

Air quality can be assessed using various methods

Sticky paper can be used to collect air particulates from various sources, and then the paper can be examined under a microscope

In this lab, an eco badge or a homemade potassium iodide gel sampler is hung or worn in order to collect data on tropospheric ozone

A lichen survey can be used to judge air quality

In this lab, students observe a natural ecosystem and examine the food chain

Students can construct a model of a mine, representing the rock layers and the mineral deposits

In population growth experiments, often other variables are added to samples of bacteria to compare the growth of a normal population to one that has been altered in some way

In this type of lab, the size of a population of species such as the gypsy moth, caterpillar, or other insect is studied