Lava Lamp
With just oil, water, and food coloring you can make your own Lava lamp!
The Science:
Water is composed of polar molecules, which means one end has a positive charge and the other has a negative charge. Oil is composed of non-polar molecules which cannot mix with polar molecules. This causes the water and oil to separate. The water molecules are more tightly packed making them more density. This makes the water sink and oil float.
With just oil, water, and food coloring you can make your own Lava lamp!
The Science:
Water is composed of polar molecules, which means one end has a positive charge and the other has a negative charge. Oil is composed of non-polar molecules which cannot mix with polar molecules. This causes the water and oil to separate. The water molecules are more tightly packed making them more density. This makes the water sink and oil float.