Build a Hydrometer
description
Transcript of Build a Hydrometer
Build a Hydrometer
When the solute is dye, you can easily tell how concentrated the solution is by looking at it? But what if the solute is sugar or salt?
Concentrated or Dilute?
Is there a way to tell how concentrated or dilute something is when it’s clear?
Hydrometers
A hydrometer is a device that floats in solutions.
Homemade Hydrometer
Building a Hydrometer
Mark Off Your Straw
and Plug It !
Number it Off and Nail It …
Concentrated or Dilute?
Warning
Need ALL materials back at the end of class.
Things float higher when the concentration of solute is higher.
Dead Sea
How does a hydrometer work?
A hydrometer floats higher in concentrated solutions and lower in dilute solutions.
Why would you need a hydrometer?
Making wine or beer.
Oceans to Lakes
What would happen to a cargo ship going from salt water to fresh water?
Why would you need a hydrometer?
On the front of boats. *Plimsoll Line
Really cold salt water
Hot fresh water
Fresh water
Hot salt water
Warm salt water
Cold salt water