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התלמידים יבינו את התכונות הכימיות והפיזיות של ברזל ועופרת במערכת המחזורית.

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יישום במעבדה

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יישום במעבדה

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התלמידים יוכלו לבצע ניסויים פשוטים במעבדה כדי לזהות את התכונות של ברזל ועופרת.

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מדוע ברזל ועופרת הם חשובים בתעשייה ובחיי היום-יום שלנו?

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Oil Analysis Engine Wear Metals Iron, Copper, Chromium, Lead, Tin, Silicon

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הצגת מצגת המתארת את התכונות הכימיות והפיזיות של ברזל ועופרת.

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Properties of metals slides - Download as a PDF or view online for free

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לארגן תלמידים לקבוצות ולדון בשאלה כיצד תכונות הברזל והעופרת מאפשרות את השימוש בהם בתעשייה.

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תרגול במעבדה: ביצוע ניסוי לבדיקת התכונות הפיזיות של ברזל.

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Illustrate iron’s position in the reactivity series by heating it with copper and magnesium oxides in this practical. Includes kit list and safety instructions.

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משימה עצמאית

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משימה עצמאית

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קריאה מתוך מקור חיצוני על ההיסטוריה של הברזל והעופרת והשפעתם על התעשייה.

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History of lead mining | Minerals and mines | Foundations of the Mendips

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Lead mining has been taking places since the Iron Age. However, most mining took places during certain periods, particularly the Roman occupation, during the 17th and 18th centuries, and in the 19th century.

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הערכה פורמטיבית

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הערכה פורמטיבית

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תצפית על התלמידים בזמן הניסויים במעבדה ושיחה על התוצאות והמסקנות.

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בוחן קצר עם שאלות על תכונות הברזל והעופרת והשימוש בהם.

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Study Notes

Metal Properties

The property of metals that refers to resistance to penetration by other materials is hardness.

The property that allows a metal to be bent, rolled, or changed in shape without breaking is ductility.

Hardenability

Copper exhibits poor hardenability, leading to hardening only on the surface.

Heat Treatment

The process that can increase or decrease the hardness of a metal by treating it differently is heat treatment.

Metal Characteristics

Steel is much harder than lead or pure aluminum.

Strength and Deformation

The characteristic of a metal that is defined as the resistance to deformation is strength.

Tempering

The metal property that is enhanced by the special heat treatment known as tempering is hardness.

Ferrous Metals

The term 'ferrous' refers to metals that contain iron in the context of metals.

Fluidity

The property of metals that enables them to join easily with another liquid metal when in a liquid state is fluidity.

Fatigue

The characteristic that causes a metal to fracture under a repeated load well below its tensile strength is fatigue.

Description

Test your knowledge on the chemical, physical, and mechanical properties of metals. Learn about characteristics related to chemical composition, reactions, color, density, weight, conductivity, and mechanical behavior like hardness.

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Test your knowledge on the chemical, physical, and mechanical properties of metals. Learn about characteristics related to chemical composition, reactions, color, density, weight, conductivity, and mechanical behavior like hardness.

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סיכום דרך דיון

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סיכום דרך דיון

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דיון כיתתי מסכם את הניסויים והלמידה על תכונות הברזל והעופרת.

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כל תלמיד כותב דבר אחד שלמד ומה מעניין אותו להמשיך לחקור.

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כתיבת סקירה קצרה על שימוש בברזל ועופרת בבית ובטכנולוגיה.

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What are some household products made with iron? - Quora

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Iron is a versatile metal used in various household products. Here are some common items made with iron:Cookware: - Cast Iron Skillets and Dutch Ovens: These are prized for their heat retention and even cooking. - Iron Pots and Pans: Often used for stovetop cooking, they can also be used in the oven.Tools: - Hand Tools: Hammers, wrenches, and pliers often contain iron or are made from iron alloys. - Garden Tools: Iron is used in shovels, hoes, and rakes for durability.Furniture: - Iron Bed Frames: Many bed frames are made of wrought iron for strength and aesthetic appeal. - Metal Furniture: Tables, chairs, and shelving units often incorporate iron for stability.Decorative Items: - Iron Wall Art: Sculptures and wall hangings made from wrought iron. - Candlestick Holders: Often designed from cast or wrought iron for durability and style.Appliances: - Ironing Boards: The frame is typically made of steel or iron for stability. - Toasters and Other Small Appliances: Some use iron in their heating elements or casings.Heating Elements: - Radiators: Many traditional radiators are made from cast iron, providing effective heating.Nails and Fasteners: - Iron Nails and Screws: Used in construction and furniture assembly.Anchor and Weight Products: - Fishing Weights and Anchors: Often made from iron due to its density.These products leverage iron’s strength, durability, and heat retention properties, making it a popular choice for many household applications.

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משחק אונליין

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משחק אונליין

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לשחק משחק חינוכי העוסק בתכונות ויישומים של מתכות בטבלה המחזורית.

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Periodic table metals metalloids and nonmetals - Teaching resources

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Metals, NonMetals, and Metalloids - Metals, Nonmetals, Metalloids - Metals, Nonmetals & Metalloids - 6.6A Metals, Nonmetals and Metalloids