Science STAAR Test TOMORROW Review

Which of the following is a property of metals?

• Dull

• Low melting point

• Malleable

• Poor conductor of electricity

What is a common property of nonmetals?

• Shiny

• High melting point

• Brittle

• Ductile

Metalloids are known for being:

• Only shiny

• Only dull

• Semiconductors

• Poor conductors of electricity

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NGSS.MS-PS1-1

What is the density of water?

• 0.92 g/mL

• 1.0 g/mL

• 1.42 g/mL

• 7.20 g/mL

According to the density tower, which liquid is the most dense?

• Oil

• Water

• Syrup

• Grape

Which of the following is an example of an unexpected change in color?

• Mixing red food coloring into water

• Mixing 2 clear liquids and the solution turns pink

• Bubbles from boiling water

• Mixing calcium chloride with water

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NGSS.MS-PS1-2

When silver nitrate and sodium chloride are mixed a solid powdery substance forms and settles to the bottom. What type of evidence that a chemical change occurred is observed?

• Change in thermal energy

• Unexpected change in color

• Production of gas

• Production of a precipitate

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NGSS.MS-PS1-2

What are elements represented by?

• A chemical formula

• A 1 or 2 letter chemical symbol

• A mixture of substances

• A physical property

Which of the following is a characteristic of compounds?

• They are pure substances that cannot be broken down chemically

• They are composed of two or more different elements chemically combined

• They are found on the Periodic Table of Elements

• They have the same properties as the elements that make them up

Which of the following is an example of a compound?

• Gold (Au)

• Oxygen gas (O₂)

• Water (H₂O)

• Antimony (Sb)

Tags

NGSS.MS-PS1-1