science charper3 lesson3 Flashcards
1
Q
inhale
A
Breathe in air.
2
Q
lungs
A
Organs that filled with air.
3
Q
exhale
A
Breathe out.
4
Q
diaphragm
A
Large flat muscle.
5
Q
capillary
A
Tiny blood vessel.
6
Q
alveoli
A
Thin wall sack.
7
Q
diffusion
A
Is a movement of particles from areas of high concentration to low concentration.
