cer worksheet: is a phase change a physical or chemical change? attendance question read the scenario below…

cer worksheet: is a phase change a physical or chemical change? attendance question read the scenario below and answer: jamal takes butter out of the refrigerator and leaves it on the counter. after 15 minutes, the butter softens and begins to melt. his sister fries an egg in a pan. the clear egg white turns solid and white as it cooks. question: which change is physical and which is chemical? sorting the changes physical change chemical change butter melting frying egg explain your reasoning for your answer above.

cer worksheet: is a phase change a physical or chemical change? attendance question read the scenario below and answer: jamal takes butter out of the refrigerator and leaves it on the counter. after 15 minutes, the butter softens and begins to melt. his sister fries an egg in a pan. the clear egg white turns solid and white as it cooks. question: which change is physical and which is chemical? sorting the changes physical change chemical change butter melting frying egg explain your reasoning for your answer above.

Answer

Brief Explanations:

A physical change involves a change in physical state or appearance without altering the chemical composition. Butter melting is a phase - change from solid to liquid and the chemical nature of butter remains the same. A chemical change results in the formation of new substances with different chemical properties. When frying an egg, the proteins in the egg white denature and new chemical bonds are formed, creating a new substance.

Answer:

Butter melting: Physical change Frying egg: Chemical change