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Which of the following is an example of physical change?
A. Mixing baking soda and vinegar together, and this causes bubbles and foam.
B. A glass cup falls from the counter and shatters on the ground.
C. Lighting a piece of paper on fire and the paper burns up and leaves ashes.
D. Baking a birthday cake for your mother.


Sagot :

The answer is B. Bubbles, foam, burning, and baking are all chemical changes. All the other options changed the substance into something new. The glass cup that shattered is still glass.

B. A glass cup falls from the counter and shatters on the ground.

What is a physical change?  

A physical change is a change in which no new substance is formed after the change occurs

When a glass cup falls to ground , no new substance is formed, hence this change is a physical change

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