STAAR 8th Grade Science Review

distance light can travel in a vacuum in one year; equal to approximately 9.5 X 10¹²km

The following organisms are producers because they contain which unique organelles

Satellites move at a constant speed around celestials bodies due to which law

A neutron has which charge

How many hydrogen are found in this molecule? (NH₄)₂CO₃

The smallest unit of life is the

When speed is combined with direction it is called which of the following

The mass of an atom is the combination of which two particles

Objects in space, made of gases, which produce their own light and heat

This is an eclipse but it could also be which moon phase?

Which of the following is an example of a chemical change?

In the equation 3H₂O, the number 2 is called what

Elements in the same period have the same number of what

Clouds of gas and dust. Sites of star formation. Remains of dead or dying stars

Which of Newton's Law is responsible for lift off of the space shuttle?

a system of stars and associated matter, held together by gravitational attraction

The valence electron number determines which of the following

Fossil record and mountain ranges support this theory

Law of conservation of mass states

If the woman in the picture does not move is work being done?

"APE" in APE MAN represents which of the following

Volcanoes are caused by which plate tectonic boundary

Reactivity increases from left to right in a period

Which type of galaxy is shown below?

fill in the blank convergent means _________

Which subatomic particle has a positive charge?

tendency of a substance to undergo chemical changes in a system

The mass (g) of substances in the reactants is equal to the mass of substances in the

The number of electrons in the last shell of an atom is called what

Genetically altering the DNA of a plant or animal is called

the formation of solids from a solution

You are in a car driving and the brakes are applied, you fly forward, which Law is this?

The Sun is a medium-sized star

An organism that feeds off of another organism, in order to survive(e.g., tick, flea, tapeworm)

Which particle is found in the cloud

When plate boundaries form mountains this is an example of which boundary?

Which form of energy is used to power the vehicle?

An object at rest stays at rest until an unbalanced force acts on it, which law is this?

underwater Trenches are caused by

This crustal feature was done to prevent which of the following processes