Why Do We Put Salt on Icy Sidewalks? | Winter Science | SciShow Kids

Описание: It's snowing and Mister Brown needs to go put some salt on the Fort's front steps. But Squeaks wants to know, why do we put salt on icy sidewalks?

----------
Love SciShow Kids and want to help support it? Become a Patron on Patreon:
  / scishow  

If you have a question for Jessi, Squeaks, and Mister Brown you can write to them here: https://forms.gle/SENBjH9szoLGfrRC9
----------
Looking for SciShow elsewhere on the internet?
Facebook:   / scishowkids  
Twitter:   / scishowkids  
Instagram:   / thescishow  

SOURCES:

Second Grade Next Generation Science Standards

Disciplinary Core Ideas:

PS1.A: Structure and Properties of Matter - Different kinds of matter exist and many of them can be either solid or liquid, depending on temperature. Matter can be described and classified by its observable properties. (2-PS1-1).

PS1.B: Chemical Reactions - Heating or cooling a substance may cause changes that can be observed. Sometimes these changes are reversible, and sometimes they are not (2-PS1-4).

Performance Expectations:

2-PS1-1. Plan and conduct an investigation to describe and classify different kinds of materials by their observable properties.

2-PS1-4. Construct an argument with evidence that some changes caused by heating or cooling can be reversed and some cannot.


Sources:
https://www.sciencelearn.org.nz/resou...
https://www.animations.physics.unsw.e...
https://www.scientificamerican.com/ar...
https://oceanservice.noaa.gov/facts/o...
https://www.canr.msu.edu/news/salt_ru...
https://www.thechaosandtheclutter.com...