- Information
- AI Chat
Edrees Mello - Water Pollution SE
Biology
Standard
Bartlett High School
Recommended for you
Preview text
Name: ______________________________________ Date: ________________________
Student Exploration: Water Pollution
Vocabulary: bacterial pollution, nutrient pollution, sediment pollution, toxic pollution, water pollution
Prior Knowledge Questions (Do these BEFORE using the Gizmo.)
- Water pollution is the addition of harmful substances to water. Some of these substances are found at home. What household chemicals might be harmful if not disposed of properly?
- What are some other causes of water pollution? __________________________________
Gizmo Warm-up The Water Pollution Gizmo will teach you about some of the main kinds of water pollution. On the TYPE tab, under Types of pollution , check that Toxic is selected. Read the paragraphs on the right and bottom of the Gizmo.
- What is toxic pollution? _____________________________
- What are some examples of toxic pollutants listed in the Gizmo? _____________________
- Can you think of other examples of toxic substances, not listed in the Gizmo? ___________
___________________________________________________ ______________________
Edrees Mello 7/19/
Bleach and anything plastic as well
as
fireworks
are carbon foot print
contaminated water
driving, farming, oil
changes
air that is harmful or poisonous. It includes industrial
wastes like toxic heavy metals from mining or chemicals
from factories, and also sewage and particulates from
power plants.
Activity A:
Types of water pollution
Get the Gizmo ready:
Check that the TYPE tab and Toxic pollution are selected.
Question: What are the main types of water pollution?
- Read and learn: Besides toxic pollution, the other types of pollution are sediment pollution , nutrient pollution , and bacterial pollution. You have already described toxic pollution on the previous page. Read about the other types, and describe each in your own words.
Sediment pollution
Description: __________________________________________________________
Causes: __________________________________________________________
Consequences: __________________________________________________________
Nutrient pollution
Description: __________________________________________________________
Causes: __________________________________________________________
Consequences: __________________________________________________________
Bacterial pollution
Description: __________________________________________________________
Causes: __________________________________________________________
Consequences: _____________________________________ _____________________
Sediment pollution is the single most common source of pollution in U. waters.
Approximately 30% is caused
by natural erosion, and the remaining 70% is caused by human activity
logging, mining, farming, and construction
Water polluted with sediment becomes cloudy, preventing animals from seeing
food. Murky water prevents
natural vegetation from growing in water. Sediment in stream beds disrupts the
natural food chain by destroying
the habitat where the smallest stream organisms live and causing massive
declines in fish populations.
Nutrient pollution is the process where too many nutrients, mainly nitrogen and
phosphorus, are added to
bodies of water and can act like fertilizer, causing excessive growth of algae.
nutrient pollution are fertilizer, animal manure, sewage treatment
plant discharge, detergents, storm water
runoff, cars and power plants, failing septic tanks and pet waste.
waterborne diseases may include gastrointestinal illnesses such as severe
diarrhea, nausea, and possibly
jaundice as well as headaches and fatigue.
treams, rivers, lakes, bays and coastal waters for
the past several decades, resulting in serious
environmental and human health issues, and
impacting the economy.
While the vast majority of bacteria are harmless or beneficial, some, like
Salmonella, cause human health
problems
animal waste from agricultural operations, domestic pets, waterfowl, and urban wildlife, and (2) human
sewage
from failing on-site sewage systems (septics), leaking sewers, or cross-connections.
Activity B (continued from previous page)
- Practice: Classify each of the following examples as toxic, sediment, nutrient, and/or bacterial pollution. Explain your classifications.
A. Logging removes trees from a hill, leaving a barren landscape.
Classification: ________________________________________________________
Explanation: _________________________________________________________
B. A man washes clothes in a stream using a detergent that contains phosphorus.
Classification: ________________________________________________________
Explanation: _________________________________________________________
C. At an old gas station, gasoline leaks from an underground storage tank.
Classification: ________________________________________________________
Explanation: _________________________________________________________
D. At a research lab, a scientist carelessly pours cultures of living microbes down the
drain.
Classification: ________________________________________________________
Explanation: _________________________________________________________
- Think and discuss: Many sources of water pollution are found within the home. What actions
can you take to reduce water pollution? _________________________________________
Logging removes trees from a hill, leaving a barren landscape. Classification: Sediment pollution Explanation:
There is no more vegetation on the hill to prevent sediment from being carried away B.
There is no more vegetation on the hill to prevent sediment
from being carried away B
nutrient pollution
Phosphorus in the detergent gets into the water, leading to nutrient pollution as
phosphorus is a
nutrient C.
Gasoline, leaking from service stations, is one of the most common sources of ground water
pollution.
Toxic
It is toxic because it is going into the plumbing system
By making sure what I pour down the drain is safe and not and for
the
environment
