8th Science STAAR Review

Front

What phase will the moon be in when it is in position B?

Back

Waning Gibbous

Front

Why are fluorine, chlorine, bromine, and iodine grouped together in the periodic table?

Back

They have the same number of valence electrons.

Front

At which point does a student riding a bicycle down a hill have the most potential energy?

Back

At point 1.

Front

Which organism in a food web has the greatest number of food sources?

Back

Hawk

Front

What does Newton’s third law of motion state?

Back

For every action, there is an equal and opposite reaction.

Front

What is potential energy?

Back

The energy stored in an object due to its position or state.

Front

What is kinetic energy?

Back

The energy of an object due to its motion.

Front

What is a food web?

Back

A system of interrelated food chains in an ecosystem.

Front

What are valence electrons?

Back

Electrons in the outermost shell of an atom that determine its chemical properties.

Front

What is the significance of group 17 in the periodic table?

Back

It contains halogens, which are highly reactive nonmetals.