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It is a physical change, because you are only changing the shape of the clay and all of the chemical properties stay the same. Also, the molding of the clay is reversible.
An example of physical change would be a melting popsicle because the substance is changing from a solid to a liquid and keeps all of it's properties. The substance doesn't change, only the shape/form.
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What is the percentage of clay used in molding sand?
molding sand contains 8-12 % of clay.
Is switching a light bulb on a physical or chemical change?
Physical change
Is the size of an object a physical property or physical change?
An object's size is a physical property of the object.
How are DVD cases made?
injection molding
Why does the color of granite never change?
The colour of granite does in fact change. For example it will change during the weathering process where feldspar minerals will change to clay minerals such as kaolinite. If the degree of weathering is high this can significantly alter the colour of the granite.
