Elements and Compounds Review Challenge

What is an element?

• A pure substance made of only one type of atom

• A substance that cannot be found on the periodic table

• A substance made of two or more types of atoms

• A mixture of different substances

Which of the following is an example of an element?

• Carbon

• Salt

• Carbon Dioxide

• Water

What defines a compound?

• A pure substance made of only one type of atom

• A mixture of different substances

• A substance containing two or more kinds of elements chemically bonded together

• A substance that cannot be found on the periodic table

Which of the following is a compound?

• Sodium

• Water

• Hydrogen

• Oxygen

Tags

NGSS.MS-PS1-1

What does a chemical symbol represent?

• An element

• A molecule

• A mixture

• A compound

Which of the following is a correct chemical symbol?

• H2O

• NaCl

• CO2

• H

Tags

NGSS.MS-PS1-1

What does a chemical formula represent?

• An element

• A mixture

• A single atom

• A compound

Tags

NGSS.MS-PS1-1

Which of the following is a correct chemical formula?

• NaCl

• H

• O

• Na

Tags

NGSS.MS-PS1-1

What is the chemical formula for water?

• H2O

• NaCl

• O2

• CO2

Tags

NGSS.MS-PS1-1

What should you include on the top of your quiz paper?

• The date

• The title of the video

• Your name and block number

• Your favorite element