ログイン
the different elements that form something or the arrangement of these elements
組成（化学）
to heat a liquid and turn it into gas then cool it and make it liquid again in order to purify it
液体を気体に変える何か
(physics) an invisible substance that makes up most of the universe's mass, detectable only through its gravitational effects
暗黒物質
(physics) matter consisting of elementary particles that are the antiparticles of those of regular matter
反物質
(chemistry) a substance that causes a chemical reaction to happen at a faster rate without undergoing any chemical change itself
触媒
any substance with a pH of more than seven that neutralizes acids creating salt and water
アルカリ
a gas with a strong smell that dissolves in water to give a strongly alkaline solution
アンモニア
a hard black substance consisting of an amorphous form of carbon which is made by slowly burning wood and is used as fuel or for drawing
木炭
a substance of small size and equal sides, formed naturally when turns to solid
結晶
a particle with a net electric charge due to loss or gain of one or more electrons
イオン
referring to the combined interaction of electric and magnetic fields, often associated with waves or radiation
電磁
the process or action of splitting a nucleus into two or more parts resulting in the release of a significant amount of energy
核分裂
(physics) the reaction in which two nuclei join together and produce energy
核分裂
a light silver-gray metal used primarily for making cooking equipment and aircraft parts
アルミニウム
a combination of two or more metals, creating a metal that is usually stronger or more resistant
合金
a metallic chemical element that has a red-brown color, primarily used as a conductor in wiring
銅
(physics) possessing the attribute of attracting metal objects such as iron or steel
磁気
(physics) the property of matter that gives it weight in a gravitational field and is a measure of its inertia
質量（物理学）
(physics) the degree to which a substance is compacted, measured by dividing its mass by its volume
密度
a heavy soft metal, used in making bullets, in plumbing and roofing, especially in the past
鉛
a soft, black, and highly conductive material made up of carbon atoms that is commonly used in pencils and as a lubricant
黒鉛
a heavy silver-colored and poisonous metal that has a liquid state in the ordinary temperature
水銀
containing or relating to a dangerous form of energy produced by nuclear reactions
放射性物質
related to heat or temperature, including how heat moves, how materials expand with temperature changes, and the energy stored in heat
熱の
