Unit 1 Science Review

Which of the following would be best to use for stirring a hot soup?

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• 
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If a rock is placed in a beaker of water and sinks to the bottom what property of matter is demonstrated by this?

• The rock is a solid and less dense than water

• The rock is a liquid and more dense than water

• The rock is a solid and more dense than water

• The rock is a gas and more dense than water

Tags

NGSS.MS-PS1-2

Here is a mixture of sand and salt used on roads after an ice storm to prevent icy conditions. How could a student separate the sand and salt if the particles of each are roughly the same size?

• Use a filter to catch the sand particles but allow the salt to fall through

• Use a pair of tweezers to pick individual pieces of sand and salt out

• Use a magnet to pull the sand out of the mixture

• Use the solubility of salt by adding water to the mixture to dissolve the salt then pour the mixture over a filter to get the sand out

Tags

NGSS.MS-PS1-2

Here is a mixture commonly called trail mix. It has M&M's, peanuts, cashews, almonds and raisins. Which of the following statements best describes what makes this a mixture?

• There is more than one substance present.

• There is no way to separate these ingredients

• All the parts of this mixture retain their original physical properties

• Some of the components in the mixture have dissolved

_ is the amount of matter in something. (Capitalize the first letter)

Tags

NGSS.MS-PS1-5

_ is a pushing and pulling force that works on metals. (Capitalize the first letter)

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

_ is a state of matter with a definite size and volume. (Capitalize the first letter)

_ is a state of matter that has a definite volume but no shape of its own. This state of matter must take the shape of the container it is placed in. (Capitalize the first letter)

Tags

NGSS.MS-PS3-4

_ is a state of matter the does not have either a definite shape of volume. This state of matter will expand to fill any container you put it in. (Capitalize the first letter)

Which property of matter describes why one of the objects is floating and the other sinks in water?

• Solubility

• Relative Density

• Mass

• Volume