Atoms make up everything.

Matter: Anything that takes up space and has mass

Protons are positive, neutrons are neutral and electrons are negative

Atomic Number- How many protons are in each atom?

Atomic Mass- Protons plus neutrons in each atom.

An atom needs a full valence shell of electrons and also strives to be neutral.

H20 molecules have an oxygen molecule that is negative and attracts the positive hydrogen molecules.  This also allows for hydrogen bonds.

Adhesion is when the water molecules stick to a surface.

Cohesion is when the water molecules stick to other water molecules. 

The difference between dehydration and hydrolysis is that dehydration is the absence of water and hydrolysis is the chemical break down of polymers to monomers due to a reaction.

In the unit we learned that energy flows and matter cycles.

Autotrophs  make their own food while Heterotrophs have to find or prepare their own food.

The carbon cycle cycle is the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere

Cellular Respiration is built up by different cycles by using light energy, glucose and different cycle to make chemical energy.