Water temperature effects on sugar
1. Introduction
The purpose of my project is to demonstrate how water temperature affects the dissolving of sugar in liquid. Everything in our universe is made up of particles which are in constant motion. In a solid state particles move the slowest while in a liquid state particles move the fastest. Under the right conditions, solid particles (the solute) when mixed in liquid (the solvent) can form a solution. This occurrence is called dissolving. I wanted to answer the question; does the temperature of water affect the speed at which sugar dissolves? According to my research, there are many different factors the affect the dissolving rate of a substance. The rate of dissolving refers to how quickly a solute dissolves in a solvent. This means how fast or how slow the sugar particles dissolves in the water. Stirring a solution is just one of the things I did to make the sugar dissolve faster. Other factors that make a difference include the size of the particles such as sugar cubes or crystals, the temperature of the water, and the concentration of the solution. Learning that these factors contribute to the rate of dissolving a solute, I hypothesize that the increase in water temperature will decrease the dissolving time of the sugar cube and sugar crystal. For this experiment the temperature of the water represents the independent variable. The dependent variable is represented by the dissolving time of the sugar cube and sugar crystal. The amounts of water, sugar cube and crystal, brand of sugar and the sugar measurements represent the constants. The cold water is the control.
2. Materials:
Water
Measuring cup
2 glasses
White sugar cubes
Brown sugar crystal
Spoon for stirring
Thermometer
Stopwatch
Note pad for findings
3. Step-By-Step Procedure:
First, I measured a ½ cup of hot water using a measuring cup and poured measurement into one (1) glass. I added five (5) sugar cubes and started the stopwatch then began stirring with a spoon. I
The purpose of my project is to demonstrate how water temperature affects the dissolving of sugar in liquid. Everything in our universe is made up of particles which are in constant motion. In a solid state particles move the slowest while in a liquid state particles move the fastest. Under the right conditions, solid particles (the solute) when mixed in liquid (the solvent) can form a solution. This occurrence is called dissolving. I wanted to answer the question; does the temperature of water affect the speed at which sugar dissolves? According to my research, there are many different factors the affect the dissolving rate of a substance. The rate of dissolving refers to how quickly a solute dissolves in a solvent. This means how fast or how slow the sugar particles dissolves in the water. Stirring a solution is just one of the things I did to make the sugar dissolve faster. Other factors that make a difference include the size of the particles such as sugar cubes or crystals, the temperature of the water, and the concentration of the solution. Learning that these factors contribute to the rate of dissolving a solute, I hypothesize that the increase in water temperature will decrease the dissolving time of the sugar cube and sugar crystal. For this experiment the temperature of the water represents the independent variable. The dependent variable is represented by the dissolving time of the sugar cube and sugar crystal. The amounts of water, sugar cube and crystal, brand of sugar and the sugar measurements represent the constants. The cold water is the control.
2. Materials:
Water
Measuring cup
2 glasses
White sugar cubes
Brown sugar crystal
Spoon for stirring
Thermometer
Stopwatch
Note pad for findings
3. Step-By-Step Procedure:
First, I measured a ½ cup of hot water using a measuring cup and poured measurement into one (1) glass. I added five (5) sugar cubes and started the stopwatch then began stirring with a spoon. I
Bibliography: Dissolving Sugar http://sciencekids.co.nz/experiments/dissolvingsugar.html /24/2014 How temperatures affect the dissolving rate? http://ask.com/question/temperature-affect-dissolving-rate.html Solubility and factors that affect solubility http://sisd.net/factors.html Solubility http://en.wikipedia.org/wiki/solubility.html 4/29/2014 Factors that affect rate of dissolving solubility http://myclass.peelschhols.org