• Water
• Freezer
• Cooking Oil
• Clear Plastic Container (like a glass or cup)
Steps:
1. Pour some water into the clear plastic container.
2. Add some cooking oil.
3. Leave this for a few minutes.
After a few minutes the oil will have risen to the
top of the container. The oil becomes lighter than the water.
4. Put the container into the freezer for a few hours.
5. Remove from freezer. The oil is now underneath the water.
Water becomes a solid when it freezes. The water expands
when it freezes and becomes less dense that the oil. This causes
the water to rise to the top.