Understanding Matter: Elements and Mixtures

Is this a MIXTURE or a SOLUTION?

• Mixture

• Solution

Is this a MIXTURE or a SOLUTION?

• Mixture

• Solution

What does this illustrate

• Elements

• Compunds

• Mixture of Elements and Compunds

• Mixture of Compounds

Tags

NGSS.MS-PS1-1

What is krypton?

• element

• compound

• mixture

Tags

NGSS.MS-PS1-1

Which of the following is a pure substance?

• Air

• Saltwater

• Carbon dioxide

• Sand

What is the smallest unit of an element that retains the properties of that element?

• Molecule

• Atom

• Compound

• Mixture

Which of the following is a compound?

• Helium (He)

Tags

NGSS.MS-PS1-1

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

• Salad

• Oil and water

• Salt dissolved in water

• Sand and iron filings

What is the main difference between a mixture and a compound?

• Mixtures are chemically combined, compounds are not.

• Compounds can be separated by physical means, mixtures cannot.

• Mixtures can be separated by physical means, compounds cannot.

• Compounds are made of one type of atom, mixtures are not.

Which of the following statements is true about solutions?

• Solutions are always solids.

• Solutions are heterogeneous mixtures.

• Solutions have a uniform composition throughout.

• Solutions can only be made with water.