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Layering Liquids. Today you are going to: layer 4 unknown liquids in a straw so that none of the liquids mixes with another. Base: potato slice Straw: 45° angle Pipet: slowly add liquid. Class Discussion: What were the results?. Isopropyl alcohol. Fresh water.

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Slide2 l.jpg
Today you are going to:layer 4 unknown liquidsin a strawso that none of the liquids mixes with another


Base potato slice straw 45 angle pipet slowly add liquid l.jpg
Base: potato slice Straw: 45° angle Pipet: slowly add liquid


Class discussion what were the results l.jpg
Class Discussion:What were the results?


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Isopropyl alcohol

Fresh water

Salt water

Glycerin


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Clean upCarefully place potato basein trash container…dropping it will splash the food coloring out of the straws!


Class discussion why did the liquids layer that way l.jpg
Class DiscussionWhy did the liquids layer that way?




Now there is more stuff in here than before can i add anything more to this space l.jpg
Now there is more stuff in here than before. this space?Can I add anything more to this space?


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This is the same amount of space as when I started with just the marbles, but now there is a LOT more stuff in here.

Jar is filled with water. It has dissolved some of the sugar at the top of the beaker.


Scientists have a word to describe how much stuff is in a certain amount of space density l.jpg
Scientists have a word to describe how much stuff is in a certain amount of space ~ density

density = stuff

space


These terms don t seem official in math what is space called l.jpg
These terms don’t seem “official.” certain amount of space ~ In math, what is space called?

density = stuff

space


Volume l.jpg
volume certain amount of space ~

density = stuff =

space volume


What do we call stuff in science l.jpg
What do we call certain amount of space ~ stuffin science?

density = stuff =

space volume


Matter which has mass l.jpg
Matter which has certain amount of space ~ mass

density = stuff = mass

space volume


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density = certain amount of space ~ mass

volume


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Isopropyl alcohol certain amount of space ~

Fresh water

Salt water

Glycerin

Salt water is more dense that fresh water, because in the same volume (amount) there are dissolved salts and other substances along with the water molecules. This means there is more mass in the same volume ~ making salt water more dense.


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