Density Diffusion Drink
Objective: Create liquids with different densities, and see them respond differently to gravity and each other.
10 tbs (tablespoons) sugar
1 tall, narrow glass
4 mixing glasses
4 colors of food coloring
- Pour 1/4 cup of water into each mixing glass.
- Color-code the four waters with 2 drops of food coloring each.
- Increase the densities of the four waters uniquely by adding 1 tbs sugar, 2 tbs, 3 tbs, and 4.
- Make sure the densities are in the order you want your colors to layer, and all sugar is dissolved.
- Dissolving the sugar goes faster if you use warm water. However, you should let it cool before layering because warm molecules will diffuse (move and mix) faster than cold molecules.
- The densities will layer cleanly if the liquid is added without force.
- To achieve this, get eye-level with the layers and use a dropper to squeeze gentle drops directly onto the surface with no free-fall space.
- Rinse and dry your eyedropper in between colors so you don't mess up your colors or densities.
Beware! Your mixtures contain the amount of sugar in THREE cans of soda. Make sure you share this drink with at least two other people.
lemon or lime juice
- Pour your mixture into a pitcher, add lemon or lime juice, LOTS of water, and ice.
- Diffuse and enjoy.