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1. Essay
In what ways can Physical Change help us in our daily lives?
2. Which of the following is an example of physical change?
A. Baking a birthday cake for your mother.
B. A glass cup falls from the counter and shatters on the ground.
C. Lighting a piece of paper and the paper burns up to leave ashes.
D. Mixing baking soda and vinegar to cause bubbles and foam.
3. Which is the best way to describe shearing?
A. Material is made longer when a tension force is applied
B. Material is made shorter when a compressive force is applied
C. A material’s length remains the same even when external forces are applied
D. All of the above
4. What change occurs if the composition of a substance remains unchanged and the appearance or shape of a substance changes?
A. Chemical change
B. Physical change
C.Both a physical and chemical change
D.Neither a physical and chemical change
PLS HELP ME SOLVE IT PLS PLS PLS
Sagot :
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