15.2 - Properties of Matter(40pts.)

Organize these options into the right categories based on type of property.

Groups:

(a) Physical Property

,

(b) Chemical Property

• Color

• Matter will be changed into a new substance

• Density

• Flammability (burns)

• Determined without destroying matter

• Indicates how a substance reacts with something else

• Observed with senses

• Solubility (dissolves)

• Reacts with water

• Reacts with acids

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HS-PS1-6

Organize these examples into the right categories based on type of change that occurs.

Groups:

(a) Physical Changes

,

(b) Chemical Changes

• 
• 
• 
• No new substance is formed.

• 
• A new substance is formed.

• A change in the chemical properties.

• A change in shape or size.

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HS-PS1-6

Match the following evidence with the observation

• Physical Change - because it is melting.

• 
• Chemical Change - because it is burned.

• 
• Chemical change - because acids/bases.

• 
• Physical Change - because size changes.

• 
• Physical Change - because it is bent.

• 

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HS-PS1-6

Type of mixture that has the same composition in every part.

• Homogeneous

• Heterogeneous

Answer explanation

Homogenous mixtures have the same composition throughout, making them uniform in every part.

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Type of mixture that DOESN'T HAVE the same composition in every part.

• Homogeneous

• Heterogeneous

Answer explanation

Heterogeneous mixtures do not have the same composition in every part, making it the correct choice in this case.

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HS-PS1-6

Name the separation technique shown in the diagram.

• evaporation

• distillation

• filtration

Answer explanation

The separation technique shown in the diagram is evaporation, where a liquid is heated to vaporize and leave behind the solid components.

Tags

HS-PS1-6

During a science class experiment, Genesis and Rosalina are trying to separate sand from iron filings. Which one of the following would they use?

• a bar magnet

• filter paper

• chromatography paper

• alum

Answer explanation

Genesis and Rosalina would use a bar magnet to separate sand from iron filings during the science class experiment.

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HS-PS1-6

What mixture could you use this tool to best separate that mixture?

• 
• 
• 

Answer explanation

The sand would fall through, while the rocks would stay in the basket.

NEITHER the apples or grapes would fall through. Too Big.

BOTH the sand and sugar would fall through. Too Small.

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HS-PS1-6

A mixture is an impure substance that can be separated into pure substances by physical means. For example, dirty water can be purified by filtration. Each item retains its properties in the mixture.
What is the definition of a mixture?

• dirty water

• cannot be separated

• impure substance

Answer explanation

A mixture is defined as an impure substance that can be separated into pure substances by physical means, such as filtration. Each item retains its properties in the mixture.

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HS-PS1-6

An element is a pure substance that cannot be separated into anything simpler by physical or chemical means. Gold is an element because it only contains gold atoms. Water is not an element because it contains hydrogen and oxygen atoms.
Gold is an element because it only contains gold atoms.
True or False?

• True

• False

Answer explanation

Gold is considered an element because it consists of only gold atoms, making it a pure substance that cannot be separated into simpler substances by physical or chemical means.

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HS-PS1-6