Elements, Compounds and Mixtures OH MY!

Which one of the following is a compound?

• neon

• oxygen

• water

• nitrogen

How would you classify the substance shown in the diagram?

• it is a mixture of compounds

• it is a mixture of elements

• it is an element

• it is a compound

Tags

NGSS.MS-PS1-1

Of the four boxes shown, which one(s) represents a model of elements only? Check all that apply!

• A

• B

• C

• D

Tags

NGSS.MS-PS1-1

Approximately how many elements are there on earth?

• 10-20

• over 1,000

• 200

• 100

Tags

NGSS.MS-PS1-1

How would you classify the substance shown in the diagram?

• mixture of elements

• compound

• element

• mixture of compounds

Tags

NGSS.MS-PS1-1

How would you classify the substance shown in the diagram?

• element

• compound

• mixture of compounds and elements

• mixture of elements

Tags

NGSS.MS-PS1-1

How would you classify the substance shown in the diagram?

• compound

• mixture of elements

• element

• mixture of compounds

Tags

NGSS.MS-PS1-1

Which of the following statements is TRUE?

• Elements consist of two or more different types of atoms.

• Compounds consist of two or more different types of atoms.

• A compound can easily be split up into its different elements.

• Mixtures are chemical combinations of two or more elements.

Which of the following is an example of a mixture?

• copper wiring

• saltwater

• aluminum can

• neon light

Which of the following is the best example of a homogeneous mixture?

• a piece of rock

• a tossed salad

• air

• a bag of skittles