Matter's Properties

A material that cannot be broken down into anything simpler by chemical reactions is a _____.

• gas

• ingredient

• element

• solid

Which is the name of the center of an atom?

• proton

• neutron

• electron

• nucleus

Particles with more than one atom joined together are called _____.

• protons

• elements

• molecules

• metalloids

Tags

NGSS.MS-PS1-1

A water molecule can be broken down into _____ and _____ atoms.

• hydrogen; oxygen

• helium; oxygen

• neon; hydrogen

• oxygen; carbon

Tags

NGSS.MS-PS1-1

Why is Mendeleev’s table called the periodic table?

• The elements are ordered from lightest to heaviest.

• The elements are ordered from when they were identified.

• Elements in nature are found in pairs.

• The properties of the elements repeat in cycles.

The color, odor, and density of a substance are all _____.

• imagined properties

• material properties

• physical properties

• chemical properties

Table salt is an example of a(n) ____________ that is made up of two or more elements.

• atom

• compound

• gas

• liquid

Tags

NGSS.MS-PS1-1

Which is not a possible sign of a physical change?

• a change in appearance

• a change in volume

• the release of energy

• a change in state

When Mendeleev published his periodic table, there were some spaces for undiscovered elements. The image below is a section of a similar table. A reasonable value for the atomic mass of the missing element is __________.

• 101

• 72.3

• 68.2

• 34.8

Tags

NGSS.MS-PS1-1

Describe five physical properties that can help to identify copper.