8th Grade Science STAAR RC1: Matter and Energy

Front

What are the rows on the periodic table called?

Back

Periods

Front

What are the columns on the periodic table called?

Back

Groups

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; the total mass of reactants equals the total mass of products.

Front

How many grams of products are produced if the reaction starts with 20g of reactants?

Back

20g of products.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances.

Front

Back

6

Front

What is the definition of matter?

Back

Anything that has mass and takes up space.

Front

What is an example of a physical change?

Back

Crumpling paper.

Front

What is an example of a chemical change?

Back

Burning wood.