When you inhale, your diaphragm goes (a)  

When you inhale, your diaphragm goes down and your lungs fill (a)   .

When your breath in, your body gets BLANK from the air

(a)  

BLANK is the same chemical that makes candles burn and iron rust

(a)  

We combine the oxygen with our BLANK to get the energy we need to live

(a)  

Your BLANK are full of tiny little passageways like sponges. These passageways allow you to take in a lot of oxygen with each breath.

(a)  

Your lungs have as much surface area as a t_____ c____

(a)  

SA is short for

(a)  

Your lungs are full of tiny passages (sacs) called

(a)  

Accumulation of BLANK BLANK causes pain in our muscles when you are working “at a level more than your lungs can supply”.

(a)  

Cellular respiration occurs when our cells combine chemicals in food with oxygen to store energy in another simple chemical called BLANK (adenosine triphosphate).

(a)  

Your body uses ATP as a sort of chemical BLANK

(a)  

We have slime inside our nose and lungs called (a)   , which traps dust particles and smoke and keeps it from going into our lungs