Dec 2023 Benchmark Review

Three different samples of matter of matter are measured in separate beakers. The beakers show the same measure for both samples of matter. The samples MOST likely have which of these in common?

• Mass number

• number of molecules

• density

• volume

Jose is going through and old box that contains a mixture of iron nails, glass, aluminum, and plastic. Which property of iron can he use to take advantage of when separating the iron nails from the rest of the materials? 

• magnetic

• electrical

• ductile

• malleable

Block A has more mass and less volume than Block B.

Based on this information, the student can correctly conclude that...

• Block A has a higher density than Block B

• both blocks have densities less than water's density

• both blocks have densities greater than water's density

• Block A lower density than Block B

Two samples of Silver must have the same ....

• density

• mass

• volume

• length

What basic units of matter have the same properties as an element?

• atoms

• protons

• elemets

• neutrons

Why does the iceberg float instead of sinking to the bottom of the ocean?

• The water is more dense than the ice

• the ice weighs less than the water

• The ice has a greater salt concentration than the water

• The water has currents that force the ice upward

In order to determine if two atoms are copper (Cu) atoms, what must be the same for each? 

• the number of protons

• the number of valence electrons

• the charge of the atom

• the size of the atom

What is the smallest part of a gold ring that is still gold? 

• an atom

• an electron

• a molecule

• a compound

Which four elements make up MOST of the human body? 

• Oxygen, carbon, hydrogen, nitrogen

• silicon, calcium, oxygen, aluminum

• carbon, sodium, hydrogen, oxygen

• sulfur, phosphorus, calcium, nitrogen

Which describes a property of all elements? 

• All elements are pure substances.

• All elements exist in the solid phase.

• All elements have six electrons

• All elements are metals.