6.P.2.1 Atoms and Elements Review

Which statement best describes atoms?

• They can be seen without a microscope

• They make up all living and nonliving matter

• They do not have volume

• They do not have mass

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NGSS.MS-PS1-1

A student has two samples of metal with similar properties. What is the most likely reason that the two samples have similar properties?

• The samples contain the same element.

• The samples contain different types of atoms.

• The samples are composed of different elements.

• The samples have been formed into similar shapes.

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NGSS.MS-PS1-1

Which statement is true about the properties of atoms?

• All atoms can be seen without a microscope

• All atoms are larger than a water molecule

• All atoms have mass and occupy space

• All atoms are composed of elements

Tony has a box of nails of various sizes. All of the nails are composed of pure iron, an element. What is true of the nails?

• All of the nails have the same mass

• All of the nails have the same weight

• All of the nails have the same volume

• All of the nails are composed of the same type of atoms

Tags

NGSS.MS-PS1-1

What is the smallest unit of an element?

• a compound

• a molecule

• an atom

• a cell

Which term describes a pure substance that is composed of only one type of atom?

• an element

• matter

• mixture

• solution

Which word BEST describes atoms of the same element?

• different

• identical

• round

• varied

A scientist determines the mass of three atoms. One atom has a mass unit of 16, while the other two atoms have a mass unit of 1 each. Which conclusion did the scientist determine about the atoms?

• The atoms with a mass unit of 1 are the same element

• All three atoms are of the same element because each has a mass

• The atom with the larger mass unit is made up of more than one element

• All three atoms are from different elements because they are not bonded into a single molecule

Tags

NGSS.MS-PS1-1

How would the size of atoms be described?

• Atoms can be seen with a magnifying glass

• Atoms can be seen with a classroom microscope

• Atoms are large enough to be seen with the human eye

• Atoms are too small to be seen with a classroom microscope

Pure aluminum foil is made up of how many kinds of atoms?

• one

• two

• three

• four

Tags

NGSS.MS-PS1-1