Noise - A Second Grade Science Topic

Noise is a type of sound that is loud, unpleasant, or unwanted. It is produced by vibrations in the air, water, or other medium. Noise can come from many sources, such as vehicles, machinery, animals, and human activities.

Study Guide

1. What is noise?
   Noise is a type of sound that is loud, unpleasant, or unwanted. It is produced by vibrations in the air, water, or other medium.
2. What are some sources of noise?
   Noise can come from many sources, such as vehicles, machinery, animals, and human activities.
3. How does noise affect the environment?
   Noise pollution can have negative effects on wildlife and human health. It can disrupt animal communication and cause stress and hearing damage in humans.
4. What are some ways to reduce noise pollution?
   - Using quieter machinery and vehicles
   - Planting trees and bushes to absorb sound
   - Using soundproofing materials in buildings

Understanding the concept of noise and its impact on the environment is an important part of learning about sound and the natural world.