Unit 1
Unit 2
Unit 3
Unit 4
100

Where protons are located.

What is Nucleus?

100

representation of a substance in which the subscripts are represented by their chemical symbols, and the subscripts represent the number of atoms of each element.



What is chemical formula?

100

Push or pull that causes a object to stop, move or change directions.

What is force?

100

A cold weather front is a boundary between a cold air mass and a warmer air mass.

What is Cold front?

200

The charge of a proton.

What is positive?

200

Letter or pair of letters that represent the element in the formula.



What is chemical symbol?

200

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


What is balanced force?

200

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

What is stationary front?

300
Charge of a neutron.

What is negative?

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, then the subscript implied is one.



What is elements?

300

Causes an object to change position, speed or direction.

What is unbalanced forces?

300

A warm weather front is a region where a warm air mass is replacing a cold air mass.

What is warm front?

400

A- atomic number.             M- mass number 

p- protons                        A- atomic number 

e- electrons                     N- neutrons 

What is Ape and Man?

400

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

What is chemical reaction?

400

The overall Forces acting on an object. Measured in Newtons (N)  



What is net force?

400

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

What is occluded front?

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