WCAS 8th Grade Review

Law of conservation of mass states

The smallest unit of life is the

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

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

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

Genetically altering the DNA of a plant or animal is called

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

The valence electron number determines which of the following

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

Which subatomic particle has a positive charge?

Volcanoes are caused by which plate tectonic boundary

Sun is a medium-sized star near the edge of a disc-shaped galaxy of stars

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

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

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

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

Which type of galaxy is shown below?

Which particle is found in the cloud

Used for measuring the intensity of the energy of celestial objects

Reactivity increases from left to right in a period

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

A neutron has which charge

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

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

Elements in the same period have the same number of what

fill in the blank convergent means _________

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

The following organisms are producers because they contain which unique organelles

Fossil record and rock correlation support this theory

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

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

the formation of solids from a solution

tendency of a substance to undergo chemical changes in a system

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

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

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

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

Which form of energy is used to power the vehicle?

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

underwater Trenches are caused by