unit 1
unit 2
unit 3
unit 4
100

the subatomic particle that is neutral.

what is a neutron?

100

a representation of a substance in which the subscripts are represented by their chemical symbols

what is a chemical formula?

100

 a push or a pull that causes an object to a stop, move , or change direction 

what is force?

100

they move very quickly and bring short periods of heavy rain, thunderstorms, or snow

what is a cold front?

200

where electrons are located in an atom.

what is electron cloud?

200

a letter or pair of letters that represent the element in the formula.

what is a chemical symbol?

200

the object stays still or continues to move at the same speed and in the same direction  

what is balanced forces?

200

Higher temperatures are behind the front.

what is a warm front?

300

subatomic particles located in an atom's nucleus.

what is protrons and neutrons?

300

represents the number of atoms of the element to the left of the subscript.  If there is not a number next to an chemical symbol

what is a subscript?

300

causes an object to change speed ,  direction or position

what is unbalanced forces?

300

where a warm air mass and a cold air mass meet, but neither has enough force to move the other.

what is a stationary front?

400

refers to a way a metal surface reflects light

what is luster?

400


When two or more molecules interact and molecules change. Bonds between atoms are broken and created to form new substances

what is a chemical reaction?

400

The overall forces acting on an object.

what is net force?

400

when two cold air masses trap a warm air mass and force it upward.

what is an occluded front?