7-100 IQWST - How Can I Make New Stuff From Old Stuff?: Beginning / End Test

Front

What happens to sugar when it is added to soda?

Back

The sugar dissolves in the soda.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances where each retains its own properties.

Front

What is a substance?

Back

A substance is a form of matter that has a uniform and definite composition.

Front

How can you identify a diamond?

Back

Determine its melting point and compare it to the melting point of other gems, including diamonds.

Front

What change produces a new substance?

Back

Burning a piece of bread in a toaster produces a new substance.

Front

What is the definition of dissolving?

Back

Dissolving is the process of a substance (solute) becoming incorporated into another substance (solvent) to form a solution.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change does not alter the chemical composition of a substance, while a chemical change results in the formation of new substances.

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change.

Front

What is an example of a chemical change?

Back

Rust forming on iron is an example of a chemical change.

Front

What is a solution?

Back

A solution is a homogeneous mixture of two or more substances.