(أَرْسَنِيك)
زنْكَر
a poisonous chemical element with properties of both metals and nonmetals that is grey in color, used in industry or as a pesticide
(عنصر الكالسيوم)
كالسيوم
a soft silver-white metal that is an important element in bones and teeth
Calcium is a mineral that plays a crucial role in various bodily functions, including building and maintaining strong bones and teeth, regulating muscle contractions, and supporting nerve function. It is found in large amounts in the body and is mainly stored in bones and teeth. Calcium is also involved in blood clotting, hormone release, and cell signaling. Having enough calcium is important for overall bone health and can help prevent osteoporosis, a condition where bones become weak and brittle. Good dietary sources of calcium include dairy products like milk, yogurt, and cheese, as well as leafy green vegetables, tofu, and fortified foods.
(الكربون)
كربون
a nonmetal element that can be found in all organic compounds and living things
(النحاس)
نحاس
a metallic chemical element that has a red-brown color, primarily used as a conductor in wiring
Copper is a reddish-brown metal that is commonly used in electrical wiring, plumbing, and various industrial applications. It is known for its excellent conductivity of electricity and heat, as well as its resistance to rust or wearing away over time. Copper is also valued for its ability to be easily shaped into wires and pipes and its flexibility, enabling it to be stretched into thin sheets or drawn into fine wires. Additionally, copper is used in alloys, such as brass and bronze, for various purposes, including making musical instruments and decorative items.
(غاز الهيليوم)
هيليوم
a chemical element that is a colorless noble gas which is lighter than air
(ذهب أصفر)
ذهب
a valuable yellow-colored metal that is used for making jewelry
Gold is a chemical element with the symbol Au and atomic number 79. It is a dense, soft, yellow, highly malleable, and ductile metal that is one of the least reactive chemical elements and is known for its beauty and rarity. Gold has been used throughout history for various purposes, including currency, jewelry, and decoration. It is a highly valued precious metal, and its price fluctuates in the international market. Gold is also an excellent conductor of electricity, making it useful in electronics and other industries. Additionally, gold has been associated with wealth, luxury, and prestige, and it has been an object of human fascination and desire for thousands of years.
(أَخْضَر)
حديد
a metallic chemical element with a silvery-gray appearance, widely used for making tools, steel, buildings, and various industrial products
Iron is a strong, metallic element that is commonly used in construction and manufacturing due to its durability and versatility. It is primarily found in nature as iron ore and is extracted through processes like smelting. Iron is often used to create steel, which is an alloy of iron and carbon, providing added strength and resistance to corrosion. In construction, iron is used for beams, columns, and reinforcement bars, contributing to the structural integrity of buildings and bridges. Additionally, iron is used in various tools, machinery, and appliances, making it a fundamental material in many industries.
(رَصاصَة)
رصاص
a heavy soft metal, used in making bullets, in plumbing and roofing, especially in the past
(مواد حامضية)
حمض
a water-soluble chemical substance that contains Hydrogen and has a sour taste or corrosive feature with a PH less than 7
(مُسَارِع كيميائي)
عَامِل مُسَارِع
(chemistry) a substance that causes a chemical reaction to happen at a faster rate without undergoing any chemical change itself
(مركب كيميائي)
مادة كيميائية
a substance or compound produced or used in a process involving chemistry
(مادة)
عنصر
a substance that is composed of only one type of atom, typically characterized by specific physical and chemical properties
(تركيب)
مركب
(chemistry) a substance that its molecules consist of two or more elements that are held together by a chemical bond
(يَتَشَرَّبُ الماء)
يُرَطِّب
(chemistry) to combine and form a compound with water molecules
معلومات نحوية:
(خلطة)
مخلوط
(chemistry) a combination of two or more substances without forming a chemical bond or any chemical reaction
(يعدي)
يمتص
to take in a liquid, gas, or other substance from the surface chemically or physically
(مستقر)
متوازن
evenly distributed or in a state of stability
(يتفاعل)
يتصرف
(chemistry) to react in a particular way because of the laws
معلومات نحوية:
(رابط)
رابطة
a link that holds atoms or ions together in any molecule or crystal
(محفز)
تسريع
to increase the rate of a chemical reaction
معلومات نحوية:
(سلسلة تفاعلات)
تفاعل متسلسل
a chemical or nuclear process that is self-sustained and its products cause other processes of the same kind
(رد فعل كيميائي)
تفاعل كيميائي
(chemistry) a process in which several chemicals combine and form different substances
(نزع الماء)
إزالة الماء
(chemistry) to lose water molecules during a chemical reaction
معلومات نحوية:
(تصفية)
تقطير
to heat a liquid and turn it into gas then cool it and make it liquid again in order to purify it
معلومات نحوية:
(معادلة كيميائية)
معادلة
(chemistry) a symbolic representation of a chemical reaction that consists of the reactants and products
(معادلة)
صيغة
a set of conventional symbols that convey a fundumantal principle
(يترسب)
يسبب ترسب
(chemistry) to become separated from the solvent in a solid form
معلومات نحوية:
(صيانة)
حفظ
the action of keeping something the way it is or in good condition
(رد فعل كيميائي)
تفاعل
(chemistry) a process in which several chemicals combine and form different substances
(المعـدِن الألمنيوم)
الألمنيوم
a light silver-gray metal used primarily for making cooking equipment and aircraft parts
Aluminum is a lightweight, silvery-white metal that is widely used in various industries due to its versatility, durability, and excellent conductivity. It is the third most abundant element in the Earth's crust. Aluminum is valued for its strength-to-weight ratio, corrosion resistance, and ability to be easily shaped and formed into different products. It is commonly used in the manufacturing of aircraft, automobiles, beverage cans, cookware, and construction materials. Aluminum is also recyclable, making it an environmentally friendly choice for many applications.
مبروك! !
لقد تعلمت 30 كلمات من Lesson 20. لتحسين التعلم ومراجعة المفردات، ابدأ في الممارسة!
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الهجاء
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