If you took a holiday.....
What might you see?
Thats right... The SEA!
Here is a video to show you how to make your own ocean in a bottle.
On the video they use a pretty big bottle. You could do the same experiment with a smaller one.
Try adding different objects into your ocean. Maybe the kind of things you would find in a real ocean - Pebbles, sand, sea creatures, shells, tiny boats anything really.
What happens when you add these things?
Do they mix in with the oil and water?
Do they float or sink?