Unit 2:Week 3 Quizizz Review_7th Grade

What chart should you reference to lookup information about elements?

• Elemental map
• Periodic Table of Elements
• Table of atoms
• None of the above

______ is an ELEMENT since it is only made up of one type of atom.

• Water
• Air
• Gold
• Salt

Atoms are more than ________ times smaller than the width of a hair.

• 10
• 100
• 1,000
• 10,000

A molecule is made up of ____ or more atoms.

• 1
• 2
• 3
• 4

Is this an atom or molecule?

• atom

• molecule

Answer explanation

Molecules are more than one atom stuck together. Each atom is an ELEMENT

When a molecule is made of DIFFERENT types of atoms, it is called a _____________.

• element

• compound

Answer explanation

Molecules with more than one element (or type of atom) in them are called compounds. Think of a compound sentence, which is two DIFFERENT sentences joined together...

Is this a compound or molecule?

• compound

• molecule

Answer explanation

This is the compound Carbon Dioxide (what we breathe out). It is made of the elements Carbon and Oxygen.

Which one of the following is a compound?

• NaCl

• O2

• Hydrogen

• He2

What is a substance with unique physical and chemical properties that can't be reduced by chemical means.

• an element

• an atom

• a molecule

• a compound

What is the picture displayed?

• Atom
• Element
• Molecule
• Compound