A ______________ is made up of different kinds of atoms chemically combined.

True or False: elements AND compounds are pure substances.

A ______________ mixture is one that does not have a uniform composition.

A _________________ mixture is one where the substances are evenly spread throughout.

Fruit Loops, pizza, and Skittles are examples of ____________________ mixtures.

Which of these is an element?

Air is:

Which of these is a compound?

In a ______________, one substance is dissolved in another substance.

Identify the following substance

Identify the following substance.

Select all the pure substances below (pick 3).

Select all the elements. (Pick 3.) $H_2O$ 

Water

Coffee

Compounds that contain hydrogen and oxygen are called organic compounds.

Pure substances cannot be separated physically.

Milk and gelatin are examples of solution.

A substance that is made up of a single kind of atom is called ___________________.

Which of the following is not a heterogenous mixture?

Air is a/an _________________.

Red litmus paper turns into blue in the presence of a/an _________________.

Which of the following is a mixture?

Which of the following is an element?

Coffee, mouthwash, and vinegar are examples of __________________ mixtures.

Is this a heterogeneous or homogeneous mixture?

In a ______________, one substance is dissolved in another substance.

Blue litmus paper turns red in the presence of a/an _______________.

A _________________ mixture is one where the substances are evenly spread throughout.

A ______________ mixture is one that does not have a uniform composition.

Elements are classified as metals, nonmetals, or _________________.

A/An_______________ is made up of one or more of the same kind of atom chemically combined.

Which of the following is represented by the picture?

Which of the following is a pure substance?

Physical changes such as melting, freezing, cutting, or smashing do not change the identity of pure substances.