
Topic 13, Lesson 4: Human Impact on Water
Presentation
•
Science
•
7th Grade
•
Practice Problem
•
Hard
+7
Standards-aligned
Wualner Sauceda
FREE Resource
3 Slides • 4 Questions
1
Topic 13, Lesson 4: Human Impact on Water
Objectives:
Analyze (cause/effect) and give examples of the impact humans have had on Earth (land, air, and water).
2
Topic 13, Lesson 3 Quiz: Human Impact on the ATMOSPHERE
IN THE NEXT SLIDES, YOU WILL TAKE A SHORT QUIZ.
3
Multiple Choice
There are many sources of air pollution in the United States and around the world. Some are natural sources, and others come from humans. Which of these examples is a human source of air pollution?
Hay muchas fuentes de contaminación del aire en los Estados Unidos y en todo el mundo. Algunas son fuentes naturales y otras provienen de los humanos. ¿Cuál de estos ejemplos es una fuente humana de contaminación del aire?
dust storms
tormentas de polvo
volcanic ash
ceniza volcánica
industrial emissions
emisiones industriales
forest fires caused by lightning
incendios forestales causados por rayos
4
Multiple Choice
Smog is a pollutant that can cause serious health problems. Smog is most often seen over large cities. Which of these substances is a main ingredient of smog?
El smog es un contaminante que puede causar graves problemas de salud. El smog se ve con mayor frecuencia en las grandes ciudades. ¿Cuál de estas sustancias es el ingrediente principal del smog?
volcanic ash
ceniza volcánica
vehicle exhaust
escape/humo del vehículo
carbon dioxide
dióxido de carbono
acidic precipitation
precipitación ácida
5
Multiple Choice
Acid precipitation is created when pollutants released from the burning of fossil fuels combine with water in the air. The acid precipitation falls to the ground. Which of these is the most likely effect of acid precipitation?
La precipitación ácida se crea cuando los contaminantes liberados por la quema de combustibles fósiles se combinan con el agua del aire. La precipitación ácida cae al suelo. ¿Cuál de estos es el efecto más probable de la precipitación ácida?
erosion
erosión
soil runoff
escorrentía del suelo
damage to tree leaves
daño a las hojas de los árboles
improvement in soil quality
mejora de la calidad del suelo
6
Multiple Choice
TRUE or False: Air quality and levels of pollution can be measured. As pollution increases, air quality decreases.
VERDADER o FALSO: Se pueden medir la calidad del aire y los niveles de contaminación. A medida que aumenta la contaminación, la calidad del aire disminuye.
True
Verdadero
False
Falso
7
ENGAGE:
The pH Scale
YouTube:
https://www.youtube.com/watch?v=ckbsHM2igT0
Discussion:
-What range of numbers is considered an acid? A base
-What is an indicator?
Topic 13, Lesson 4: Human Impact on Water
Objectives:
Analyze (cause/effect) and give examples of the impact humans have had on Earth (land, air, and water).
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