Evaluate: Classifying Matter

What state of matter is oobleck?

What 2 descriptors are used to classify solids?​ ​ ​ ​

• Not rigid
• Rigid
• Fixed volume
• No Fixed volume

The salad pictured here is classified as a mixture. What type of mixture is it considered?

• Homogeneous

• Heterogeneous

Sodium chloride (salt) is an element

• True

• False

Answer explanation

False! Sodium chloride is a compound of the 2 elements, sodium and chlorine

Is copper an element or a compound?

• Element

• Compound

Mercury is a metal found on the periodic table. The picture shows mercury at room temperature. What state of matter is mercury?

• Solid

• Liquid

• Gas

• Plasma

Baking powder is composed of sodium, hydrogen, carbon, and oxygen. Is baking powder a pure substance or mixture?

Which descriptors best describe the substance, blood?

• Plasma

• Liquid

• Heterogeneous mixture

• Pure substance

• Homogeneous mixture