Reading Success 2nd-Book 6 Unit 32 (E)

10 카드 | CompassPublishing

세트공유

atom

the smallest part of an element
Nobody can see atoms.

balance

to steady something by spreading its weight equally
He can balance a ball on his nose.

current

a moving section of a body of water
The current is broken.

magnetic field

an area that a magnet affects
The object has its own magnetic field.

negative

in mathematics, being less than zero
This has a negative charge.

neutral

not having a positive or negative electrical charge
The charge is neutral on this.

nucleus

the center of an ATOM
Every atom has a nucleus.

orbit

the path taken by an object as it circles around another object
All the planets in space are constantly in orbit.

particle

one of the tiny pieces of matter that form an ATOM
There are a lot of dust particles in the air.

positive

showing the presence of a substance or condition in a scientific or medical test
It has a positive charge.