3-2-1 Exit Ticket by Adesewa Yomi-Adeoye https://padlet.com/adesewa2021/nx1b6up5cb1mqfwa 3 things you learn 2 thing you wonder and 1 thing you question en-us 2021-05-05 20:26:54 UTC 2025-12-02 05:16:46 UTC hello@padlet.com https://padlet.net/icons/png/1f607.png Exit ticket hjy630 https://padlet.com/adesewa2021/nx1b6up5cb1mqfwa/wish/1496379463 I know acids can deteriorate natural stones quickly. Cleaners have to be mindful of the substances they're cleaning. Acid cleaners and alkaline cleaners have pros and cons.

I wonder how often gravestones need to be cleaned and...]]> 2021-05-06 02:00:05 UTC https://padlet.com/adesewa2021/nx1b6up5cb1mqfwa/wish/1496379463 Exit Ticket spxk76cm9m https://padlet.com/adesewa2021/nx1b6up5cb1mqfwa/wish/1496379658 3-limestone, marble, Granite 
2- which I should pick for my gravesite. Which last longer
1- how did you determine this idea? which
]]> 2021-05-06 02:00:11 UTC https://padlet.com/adesewa2021/nx1b6up5cb1mqfwa/wish/1496379658 Exit Ticket - Jen https://padlet.com/adesewa2021/nx1b6up5cb1mqfwa/wish/1496380021 I know: 
1. That natural stones and masonry are used in headstones
2. Depending on the pH of a cleaning agent, it can have adverse affects to the object being cleaned
3. I know lime juice has a very low pH of ~2.18

Wonder:
1. How does lime juice compare to stomach acid - Like what if our stomachs were JUST lime juice
2.  Why don't products tell you the pH but they tell you the amount of calories (?? sus)

Question:
1. Which headstone is the best against natural deterioration and is acid rain a large enough concern to deteriorate this stone?]]> 2021-05-06 02:00:21 UTC https://padlet.com/adesewa2021/nx1b6up5cb1mqfwa/wish/1496380021 EXIT TICKET itstrisarahtops https://padlet.com/adesewa2021/nx1b6up5cb1mqfwa/wish/1496380038 I know...that acids can occur naturally or human instigated (i.e. rain or cleaning products).

I wonder...what gravestone my family will pick for me.

I question...because the fact that certain surfaces deteriorate quicker than others, should that really mean that it should be the "cheaper" option (in terms of gravestone headstones)? (Some people may not be able to afford the more expensive options)]]> 2021-05-06 02:00:21 UTC https://padlet.com/adesewa2021/nx1b6up5cb1mqfwa/wish/1496380038 Exit ticket https://padlet.com/adesewa2021/nx1b6up5cb1mqfwa/wish/1496380138 1. I know that acids corrode stone
2. Granite is extremely resilient to weathering
3. Acids are ph<7 and bases are ph>7

1. I wonder when mount rushmore will be unrecognizable 
2. What the most resilient stone is

1. I question how big of an issue acid rain will become in the future]]> 2021-05-06 02:00:24 UTC https://padlet.com/adesewa2021/nx1b6up5cb1mqfwa/wish/1496380138 Exit ticket https://padlet.com/adesewa2021/nx1b6up5cb1mqfwa/wish/1496380910 i know:
acids have a ph below 7.0
sealants are used in order to protect stone that is prone to damage from acids
acids degrade stone such as marble
i wonder:
about the long term effects of acid rain on stone structures
about how long sealants for stone structures can last before they are degraded too much
i question:

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