Noise
Noise is defined as unwanted sound that is loud, disruptive, or unpleasant to the ears. It can have negative effects on human health and well-being, as well as on the environment.
Sources of Noise
Noise can come from a variety of sources, including:
- Traffic
- Construction sites
- Industrial machinery
- Household appliances
- Recreational activities (e.g., concerts, sporting events)
Effects of Noise
Noise pollution can have several negative effects, including:
- Hearing damage
- Stress and anxiety
- Sleep disturbances
- Interference with communication
- Impact on wildlife and ecosystems
Measuring Noise
Noise is measured in decibels (dB). The higher the decibel level, the louder the noise. Exposure to noise levels above 85 dB for an extended period of time can cause hearing damage.
Ways to Control Noise
There are several ways to control and reduce noise pollution, including:
- Using sound barriers and insulation
- Implementing noise regulations and zoning laws
- Using quieter technologies and equipment
- Creating green spaces to absorb and block noise
Study Guide Questions
- What is the definition of noise?
- List three sources of noise pollution.
- What are the negative effects of noise pollution on human health?
- How is noise measured, and what is the unit of measurement?
- What are some ways to control and reduce noise pollution?
◂Science Worksheets and Study Guides Eighth Grade. Rocks
Worksheet/Answer key
Rocks 
Worksheet/Answer key
Rocks Worksheet/Answer key
Rocks Vocabulary/Answer key
Rocks Vocabulary/Answer key
Rocks Vocabulary/Answer key
Rocks
Worksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
Earth/Space Science: Students will use scientific skills and processes to explain the chemical and physical interactions (i.e., natural forces and cycles, transfer of energy) of the environment, Earth, and the universe that occur over time.
Earth History: Explain how sedimentary rock is formed periodically, embedding plant and animal remains and leaving a record of the sequence in which the plants and animals appeared and disappeared.
Explain how sedimentary rock buried deep enough may be reformed by pressure and heat and these reformed rock layers may be forced up again to become land surface and even mountains.