Module 1 Lesson 2 Quiz

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

• imagined properties

• material properties

• physical properties

• chemical properties

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

• helium; oxygen

• neon; hydrogen

• oxygen; carbon

• hydrogen; oxygen

Look at the model of a carbon atom. Which is the name of the center of an atom?

• proton

• neutron

• electron

• nucleus

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

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.

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

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

• atom

• compound

• gas

• liquid

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

• protons

• elements

• molecules

• metalloids

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

• gas

• ingredient

• element

• solid

What is a physical property that can help to identify copper.

• brown or bronze in color

• ductile

• reflective

• hard