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

Last updated about 1 month ago

17 questions

Required

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

Last updated about 1 month ago

17 questions

Required

Classify each description as either a chemical or physical change.

boiling water
photosynthesis
apple rotting
dissolving sugar in water
firefly glowing
glass cup shattering
making ice cubes
inflating a balloon with helium
baking cookies
fall foliage changing color
shredding paper
fireworks exploding
sharpening a pencil
copper tarnishing
gasoline burning

physical change
chemical change

Required

Classify each description as either a chemical or physical property.

malleability
flammability
melting point
reactivity
volatility (ease of turning into a gas)
color
solubility (ease of dissolving)
luster (shiny or dull)
combustibility
density

physical property
chemical property

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

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

pizza
helium (He)
milk
trail mix
cake batter
carbon (C)
oil and vinegar salad dressing
copper (Cu)
table salt (NaCl)
jello
water (H2O)
sugar (C12H22O11)

element
compound
homogeneous mixture
heterogeneous mixture

Required

0.5

Required

0.5

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0.5

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0.5

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0.5

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0.5

Required

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

Required

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

Trim End | 00:38

Question 13 | 00:38

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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?

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Trim End | 04:51

Question 16 | 04:50

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Question 16

04:50

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Trim End | 04:09

Question 17 | 04:09

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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 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?

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?

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