Sludge Intro by Walburn, Emily R https://padlet.com/zewalbur/x3tzohtsmipc Made with big dreams en-us 2018-11-21 14:18:13 UTC 2025-11-18 08:51:19 UTC hello@padlet.com Key things from first week 11/12/18 - 11/21/18 zewalbur https://padlet.com/zewalbur/x3tzohtsmipc/wish/306745267 Volume - amount of space a substance has (length times width times height or graduated cylinder and unit is cm cubed or mL)
Mass - matter of an object with no definite shape  (measure by a balance unit= g)
Density is the measure of mass divided by volume.  (Intrinsic property)
When looking at the graduated cylinder and getting measurements, measure from the bottom of the meniscus (upside down bubble).
Round measurements to the nearest tenth to have a low % error/ get closer to the theoretical (true) density. 
% error = my data - true data / true data times 100. ]]> 2018-11-21 14:22:38 UTC https://padlet.com/zewalbur/x3tzohtsmipc/wish/306745267 Key things 12/3/18 zewalbur https://padlet.com/zewalbur/x3tzohtsmipc/wish/310562861 Plateau - where the measurements stay the same 
Make sure the whatever the substance is in matches up with the bottom of the thermometer

]]> 2018-12-03 18:14:03 UTC https://padlet.com/zewalbur/x3tzohtsmipc/wish/310562861 zewalbur https://padlet.com/zewalbur/x3tzohtsmipc/wish/314287531 2018-12-13 15:15:20 UTC https://padlet.com/zewalbur/x3tzohtsmipc/wish/314287531 Key Things 12/13/18 zewalbur https://padlet.com/zewalbur/x3tzohtsmipc/wish/314287955 2018-12-13 15:15:56 UTC https://padlet.com/zewalbur/x3tzohtsmipc/wish/314287955 Filtration zewalbur https://padlet.com/zewalbur/x3tzohtsmipc/wish/314296718 2018-12-13 15:29:28 UTC https://padlet.com/zewalbur/x3tzohtsmipc/wish/314296718 Evaporation zewalbur https://padlet.com/zewalbur/x3tzohtsmipc/wish/314302222 2018-12-13 15:37:43 UTC https://padlet.com/zewalbur/x3tzohtsmipc/wish/314302222 solubility and temperature demonstration zewalbur https://padlet.com/zewalbur/x3tzohtsmipc/wish/314309621 2018-12-13 15:48:38 UTC https://padlet.com/zewalbur/x3tzohtsmipc/wish/314309621 Part 2 of solubility and temperature demonstration zewalbur https://padlet.com/zewalbur/x3tzohtsmipc/wish/315226618 2018-12-17 16:16:17 UTC https://padlet.com/zewalbur/x3tzohtsmipc/wish/315226618 Fractional Distillation zewalbur https://padlet.com/zewalbur/x3tzohtsmipc/wish/317344457 This is where you separate liquids by changing the test tubes every boiling point occurs (Plateau of 6). (Prefer at least two times but the temperature cant go over 105).
Set it up like boiling point except with thermometer and pipe hooked on to the test tubes with a stopper and having the other end of the pipe into another test tube that is in water.  ]]> 2019-01-03 22:08:25 UTC https://padlet.com/zewalbur/x3tzohtsmipc/wish/317344457