A large organ within our body that processes blood and helps to clean unwanted substances out of it.
What is liver?
A pair of lenses set in a frame making them able to be worn, used to correct or assist eyesight.
What are glasses?

The name of THESE small spherical toys made of rubber.
What are bouncy (or rubber) balls?
A small, usually black or green fruit used as food or for making oil.
What is an olive?
Devices used to align and straighten teeth in order to improve dental health.
What are braces?
The name of THIS inflated ball, used in a game in which points are scored by throwing a ball through a netted hoop at each end of the court.
What is a basketball?
To bring and hand over (a letter, parcel, or ordered goods) to the proper recipient or address.
What is to deliver?
After breaking a bone, you usually need to wear a kind of THIS protective mold until the bone is fully healed.
What is a cast?

You can jump up and down on THIS, spring-loaded pole!
What is a pogo stick?
A small, thin, narrow piece of something cut or split off a larger piece.
What is a sliver?
A small device that fits in or on the ear, worn by partially deaf people to amplify sound.
What are hearing aids?
A strong fabric or nylon sheet connected by springs to a frame. Some people use them to do gymnastic exercises, but anyone can have fun jumping up and down on them!
What is a trampoline?
To experience a feeling or situation (usually an unpleasant one) again in one's imagination or memory.
What is to relive?

EnChroma glasses are a kind of eyewear that can assist in correcting THIS visual deficiency.
What is color blindness?

Astronauts train to prepare for THIS weightless condition, a state in which there is no apparent force acting on a body.
What is zero gravity?