DOL - 6.6 (c) - STAAR Review

Magnesium is a ​ (a)   and oxygen is a ​ (b)  

• metal
• non-metal

Copper is a common metal. Which of the following properties does this metal most likely have?

• High conductivity, high malleability, and low luster

• Low conductivity, low malleability, and low luster

• High conductivity, high malleability, and high luster

• Low conductivity, high malleability, and high luster

Silicon has a dull, metallic luster, conducts heat well, and is brittle. What is it?

• Nonmetal

• Metal

• Metalloid

• None of the above

The chart shows properties of four elements.

Based on these properties, which element is most likely a nonmetal?

• Element 1

• Element 2

• Element 3

• Element 4

Tags

112.18.b.6.A

Based on these observations, which sample is most likely a nonmetal?

• Sample 1

• Sample 2

• Sample 3

• Sample 4

Tags

112.18.b.6.A

In which shaded region would you expect to find dull, brittle solids?

• 
• 
• 

What is a rare earth element?

• A. A type of rock found in the Earth's crust

• B. One of 17 elements on the periodic table, including lanthanides, scandium, and yttrium

• C. A common metal like copper or tin

• D. A type of fossil fuel

Tags

NGSS.MS-ESS3-1

Why are rare earth elements considered valuable despite not being very rare?

• A. They are found in large quantities in the Earth's crust

• B. They are easy to extract and purify

• C. They are crucial for building a lot of technology and are in high demand

• D. They are used as a primary source of energy

Tags

NGSS.MS-PS1-3