8TH GRADE SCIENCE STAAR REVIEW

Front

What is the formula to calculate force?

Back

Force (F) = Mass (m) × Acceleration (a)

Front

What is the unit of force in the International System of Units (SI)?

Back

Newton (N)

Front

What does it mean for ocean crusts to be diverging?

Back

Diverging means that the ocean crusts are moving away from each other.

Front

How many aluminum atoms are in the compound Al2(SO4)3?

Back

2

Front

List the components of the universe from smallest to largest.

Back

Planets, stars, nebulae, galaxies

Front

What is a food chain?

Back

A food chain is a sequence that shows how energy and nutrients flow from one organism to another.

Front

In a food chain, who typically gives energy to the next organism?

Back

The organism that is consumed gives energy to the organism that consumes it.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object.

Front

What is the relationship between mass and acceleration in Newton's second law?

Back

The greater the mass of an object, the more force is needed to accelerate it.

Front

What is sea-floor spreading?

Back

Sea-floor spreading is the process by which new oceanic crust is formed at mid-ocean ridges and older crust is pushed away.