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

Last updated 4 months ago

17 questions

Required

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

Last updated 4 months ago

17 questions

Required

Classify each description as either a chemical or physical property.

luster (shiny or dull)

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

0.5

Required

0.5

Required

0.5

Required

0.5

Required

0.5

Required

0.5

Required

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

Hydrochloric acid in the stomach breaks food down into different substances

Muscle churning causes the food to break into smaller pieces

Enzymes from the liver break down fats

Required

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

Muscle churning causes the food to break into smaller pieces.

Movement of the esophagus pushes food to the stomach.

Acids in the stomach break down food into different substances.

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)

Classify each description as either a chemical or physical 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.

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?

PHYSICAL PROPERTY

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

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...

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?

PHYSICAL PROPERTY

CHEMICAL PROPERTY

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...

CHEMICAL PROPERTY