Research
A web site that ends in .com and contains many misspelling and broken links is __________.
What is not credible (not good, reliable)?
The major contributor of microorganisms (bacteria) in the water supply is ___.
What is animal fecal wastes?
What is carbon (charcoal)?
The amount of suspended matter in a liquid by measuring the amount of light which is scattered at 900
What is turbidity?
Two properties/evidences that water may not be suitable to drink
Color, Turbidity, Odor
The 2 endings on a web site address that suggests that it is credible.
What are .edu and .gov?
The measure of the acidity of a substance is referred to as ___.
What is pH?
The introduction of chemical, physical, or biological agents into the water that can adversely affect living and nonliving systems
What is water pollution?
The shape of a water molecule
What is bent?
The substance(s) that are dissolved in a solvent
What are solutes?
The following excerpt of an engineering report would most likely belong to which section:
The equipment for the turbidity tests included LabView Turbidity software, MyDAQ (data acquisition), glass vitals, and calibration vials. First, the calibration vials were utilized to set the Turbidity reader. Next, a vial was filled with raw water to above the white line. The vial was placed in the Turbidity meter so that the arrows aligned.
What is Methods and Materials?
The accumulation of inorganic chemicals, such as mercury,lead, arsenic, and nitrates in lakes and reservoirs is especially high because:
a) Factories dump polluted water containing organics into lakes and reservoirs on a regular basis.
b) The water in lakes and reservoirs is slow movings and naturally creates collection points which allow these chemicals to build up.
c) The larger amount of water craft found on lakes results in higher levels of inorganic chemicals.
What is b- in slow moving water chemicals can accumulate?
The normal pH of pure water
What is 7?
Due to hydrogen bonding water molecules form a skin on the surface
What is surface tension?
Refers to any metallic chemical element that has a relatively high density and is harmful at low concentrations
What are heavy metals?
The following excerpt from a science lab report would belong in which section:
Water is essential for life; however, unfiltered and untreated water can contain harmful bacteria and other chemicals. Humans can survive on average 3 days without water depending on the temperature and their level of activity. The ability to filter water is vitally important. As a result, many filtration techniques and devices have been created.
What is the introduction?
Water flow that occurs when soil is infiltrated to full capacity from excess water from rain, or melted water is described as:
a) flooding
b) water runoff
c) water encroachment
What is a- flooding?
This dissolved gas is an important requirement for aquatic life
What is oxygen?
This term refers to a solution in which water is the solvent
What is aqueous?
Selected materials from a provided list and limited quantities that can be utilized during a project
What are constraints?
What are 12 and 1"?
What is point source pollution?
The primary purpose of coagulation and flocculation is
a) control corrosion
b) to kill disease causing organisms
c) to remove particulate impurities and suspended matter.
d) to remove leaves, sticks, and fish debris
What is c- to remove solid particles (particulates)?
This chemical (ion) is necessary for plants and algae; however, high levels can become dangerous and lead to algae blooms, excessive plant growth, and oxygen dead zones.
What are nitrates?
Two human activities that contribute to water pollution
What are:
overgrazing
poor land management
removal of vegetation
sewage, industrial, or domestic wastes
construction or mining
release of gases and aerosols into atmosphere
mismanagement o reservoirs
accidental spills