8TH GRADE SCIENCE STAAR REVIEW 2019

Front

What are the substances listed on the right side of a chemical equation called?

Back

Products

Front

What is the net force if there are 4000 N to the left and 1000 N to the right?

Back

4000 N left

Front

What happens to an object when it accelerates?

Back

It can slow down, go faster, or change direction (turn).

Front

What type of boundary occurs at a rift valley?

Back

Divergent boundary

Front

How many molecules of Carbon are in the formula 3C2H6?

Back

3

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is the difference between a reactant and a product?

Back

Reactants are substances that start a chemical reaction; products are what is produced.

Front

What is acceleration?

Back

The rate of change of velocity of an object.

Front

What is a divergent boundary?

Back

A tectonic plate boundary where two plates move away from each other.