.........is the most complex organ in your body.

·      ................ is made up of a thick bundle of nerves.

.....................are nerves that carry messages from sense organs and other body parts to the spinal cord.

·      ................ are nerves that carry messages from the brain to other parts of the body.

........    is sac-like structure that churn food

............breaks down fats

...........produces chemical that adjust  sugar level 

·   ............. most digestion occurs in it

..........are finger-like structures in the small intestine  

............are bean-shaped organs of the human body.

.............is a muscular sac stores urine

·   .........is the ability to do work or to cause change.

· ..............is the energy at rest.

...........is the energy in motion.

...........................is the distance an object travels in a particular amount of time

.......................·      Is transfer of thermal energy from one object to another.

.............·      is how fast or slow particles vibrate.

Speed is often described as fast or slow.                 

............. is a property that causes matter to have a force, called electric force.

Two particles that have the same charge will......

Two particles that have the opposite charge will.......

·      ............is the flow of charged particles in the same direction

.................is a material that allows electric current to flow through

...........is a material that does not allow electrical currentto flow through it

........is the most important light source 

sound can travel through solid,liquid and gas 

The nervous system is made only of the brain