PRACTICE: classifying matter ECM, chemical & physical changes/properties (2024)

Last updated 4 months ago

17 questions

Required

A substance that appears to "disappear" might do so because of a chemical change, but it might "disappear" because of a physical change. Explain what (and why!) you would need to look for (evidence!) in order to determine whether the change is chemical or physical.

Required

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Question 13

00:38

Required

What is one thing you could do to a piece of paper that represents a physical change?

Required

What is one thing you could do to a piece of paper that represents a chemical change?

Question 16

04:50

Question 17

04:09

PRACTICE: classifying matter ECM, chemical & physical changes/properties (2024)

PRACTICE: classifying matter ECM, chemical & physical changes/properties (2024)

A substance that appears to "disappear" might do so because of a chemical change, but it might "disappear" because of a physical change. Explain what (and why!) you would need to look for (evidence!) in order to determine whether the change is chemical or physical.

What is one thing you could do to a piece of paper that represents a physical change?

What is one thing you could do to a piece of paper that represents a chemical change?

Classify each description as either a chemical or physical change.

physical change

chemical change

Classify each description as either a chemical or physical property.

physical property

chemical property

A substance that appears to "disappear" might do so because of a chemical change, but it might "disappear" because of a physical change. Explain what (and why!) you would need to look for (evidence!) in order to determine whether the change is chemical or physical.

Label each item as one of the following: element, compound, homogeneous mixture, or heterogeneous mixture.

element

compound

homogeneous mixture

heterogeneous mixture

Which of the following is a physical change that takes place in the stomach?

Which of the following is a chemical change that takes place in the stomach?

What is one thing you could do to a piece of paper that represents a physical change?

What is one thing you could do to a piece of paper that represents a chemical change?

physical change

chemical change

physical property

chemical property

element

compound

homogeneous mixture

heterogeneous mixture

Picture 5 is best classified as...

Picture 6 is best classified as...

Picture 7 is best classified as...

Picture is 8 best classified as...

Picture 9 is best classified as...

Picture 10 is best classified as...

Watch the video of potassium being placed into water, then categorize the following statements as physical or chemical properties.

PHYSICAL PROPERTY

CHEMICAL PROPERTY

PHYSICAL PROPERTY

CHEMICAL PROPERTY