Why does water that is floating suddenly begin to sink. This water cycle activity shows you what happens to ice cubes when they begin to melt when floating in oil.
In this water cycle activity book you will learn about many properties of water. Some of the activities in the book include Penny Drop, Great Ice Cube Race and Exploding Colors. The 46 page book is packed with many other fun activities for kids. Myrna Martin
The ice cube floats in the oil because water expands when it freezes and becomes lighter than the salad oil. As the ice cube melts and turns into a liquid it contracts.
The water becomes heavier than the salad oil forming round balls of water suspended in the salad oil as it drifts to the bottom of the container.
The water forms small balls of liquid because the water molecules are attracted to each other and not the oil. This causes surface tension to form on the outside of the water molecules. The shape they form, a ball, is the most compact shape it can form as it drifts down through the oil.
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