6 P 2 1

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

• protons

• electrons

• atoms

• neutrons

The separate atoms that make up a wooden table CANNOT be seen because the atoms are

• too small

• moving too fast

• packed tightly together

• hidden beneath the surface

Which is true for every atom of an element?

• It can be seen with a magnifying glass.

• It is joined together with another atom.

• It has mass and volume.

• It is weightless.

Tags

NGSS.MS-PS1-5

A student has two pieces of aluminum foil. Each piece can be folded and rolled into a wire. Why do both pieces of aluminum foil behave the same way?

• They are composed of the same types of atoms.

• They are composed of different types of atoms.

• They have the same physical properties, but different chemical properties.

• They have the same chemical properties, but different physical properties.

Tags

NGSS.MS-PS1-1

The Greek philosopher Aristotle described matter with the phrase "unable to be divided." The modern concept that grew from Aristotle's idea is the

• atom

• proton

• neutron

• electron

Tags

NGSS.MS-PS1-1

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

• an atom

• an electron

• a molecule

• a compound

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Graphite, diamond, and glassy carbon are all forms of the element carbon. Why are all three considered carbon?

• They were originally fossils.

• They are mined from the same region.

• They are composed of the same kind of atoms.

• They were formed from carbon-containing organisms.

Tags

NGSS.MS-PS1-1

A student has a pure gold coin and a pure gold necklace. Which statement best explains why the gold objects look similar?

• All atoms of the same element come from the same mineral deposit.

• All atoms of the same element are found in a liquid state of matter.

• All atoms of the same element have the same properties.

• All atoms of the same element have different properties.

Which term best identifies the most basic substances that make up all living and nonliving things?

• chemicals

• elements

• molecules

• particles

Which statement would best explain a property of all elements?

• All elements exist in the solid phase.

• All elements are pure substances.

• All elements have six electrons.

• All elements are metal.