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Mixing & Separating - melt and dissolve

 
What is the difference between melting and dissolving?
Materials you will need:

• Butter
• Ice Lolly or Ice Cube
• Candle
• Sugar
• Koolaid
• Chocolate
• Ground coffee
melting ice cube
 

In order to dissolve something there needs to be two substances- a solute and a solvent:

(A solute is a solid that dissolves and a solvent is the liquid it has dissolved in)

~Koolaid can be dissolved in water.

~Sugar can be dissolved in water.

~Instant coffee can be dissolved in water.

A mixture called a solution is made when a solid disappears into a liquid. When the substance dissolves the solution is transparent. The solution could be of a color. If it is not transparent (see-through), it is not a real solution.

A solid solute dissolves in a solvent to make a mixture called a solution.

In order to melt something you need only one substance:

~Chocolate melts in a fondue pot.

~Butter melts in a frying pan.

~Wax melts in a burning candle.

~Ice melts on a hot day.

Steps

1.)  Take some sugar and stir it into a jug of water.  The granulated crystals dissolve and mix with the water.

2.)  Take an ice cube from the freezer and place it on a plate and take it outside on a hot day and watch it melt. 

3.)  Try melting and dissolving some of the other items above or try some items that you may have around the house. 

Note:  Make sure you have adult supervision it you burn a candle or melt butter or chocolate.

 
 
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