Sound
What part of the body collects sound?
Ear (Ear canal)
What is the system that includes the heart as the main organ?
Cardiovascular
What is pH?
a figure expressing the acidity or Alkalinity of a solution.
What are the 4 states of matter?
Solid, liquid, gas, and plasma
What number gives the same number of protons?
Atomic number
What is the tympanic membrane?
Eardrum
What are the two parts of the nervous system?
an organic compound that changes color to indicate acid or a base.
What is it called when a liquid is heated to the point of turning to vapors?
Boiling point
What type of reaction is this?
AB + C ---> AC + B
Single Displacement
What structure transmits vibrations to sounds to our brain?
Cochlea
What type of transport does the respiratory system use?
Diffusion
A substance that produces hydrogen ions in a water solution
What is buoyancy?
The ability for a fluid to exert an upward force on an object.
What chemical reaction is usually associated with breaking down things?
Exothermic
What is human perception of sound volume?
Loudness
What are the three types of muscle?
Skeletal, Smooth, and Cardiac
What is the neutral pH?
7
What is the force exerted per unit area?
What chemical reaction are usually associated with building something
Endothermic
How many bones are in the ear?
3
What are three jobs of the digestive system?
Ingestion, Digestion, Secretion, Mixing, Absorption
What makes a weak base?
it does not ionize completely.
What is sublimation?
a solid going directly to gas
What is reduction?
the addition of elections