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Rusting Is Chemical Change

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Format: Interactive (Online), Printable (PDF)
Grades: 456
Subjects: scienceelareading
Standards: 5-PS1-4
Languages: English, Spanish

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Reading passage

Reading comprehension

Audio narration

With word word highlighting

Comprehension quiz

Auto-graded

Writing activity

Open-ended response

Glossary & flashcards

Vocabulary practice

Differentiated version

Adapted for varied levels

Spanish translation

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About this reader

This 400-word reading passage introduces fifth-grade students to the concept of rusting as a chemical change, aligned with NGSS standard 5-PS1-4. Students explore how rust forms when iron reacts with oxygen and water over time, creating a new substance called iron oxide with completely different properties. The passage explains that rust is flaky, reddish-brown, and weaker than the original iron, demonstrating a slow chemical change. Through real-world examples like bikes, cars, and bridges, students understand why preventing rust matters in everyday life. The content includes audio integration for accessibility, a simplified differentiated version for diverse learners, Spanish translations, and engaging activities. Students build foundational understanding of chemical reactions and property changes through age-appropriate language and concrete examples. The passage includes bold key vocabulary terms, a glossary, multiple-choice comprehension questions, writing activities, and graphic organizers that help students organize their thinking about chemical changes and their effects.

Written by Workybooks TeamPublished by Workybooks

Sample passage and quiz content

CONTENT PREVIEW

Close-up of a rusty padlock secured to a chain post, symbolizing security. — Rusty padlock. Rusting is a slow chemical change that can take days, weeks, or even months depending on conditions. Image credit: Lyncoln Miller / Pexels.

Rusting is a chemical change that happens when iron combines with oxygen and water. A chemical change is when one or more substances turn into completely new substances with different properties. Understanding rusting helps us protect important metal objects like cars, bridges, and tools from damage.

When a piece of iron is left outside in wet conditions, it slowly begins to rust. The iron reacts, or combines chemically, with oxygen from the air and water from rain or moisture. This reaction creates a new substance called iron oxide, which is the scientific name for rust. Iron oxide has completely different properties than the original iron metal.

The properties of rust are very different from iron. Shiny, strong iron becomes dull, reddish-brown rust. Iron is solid and hard, but rust is flaky and crumbles easily. You can think of it like baking a cake—once you mix flour, eggs, and sugar and bake them, you cannot get those original ingredients back. The cake is a new substance. Similarly, once iron becomes rust, you cannot easily change it back to iron.

Rusting is a slow chemical change that can take days, weeks, or even months depending on conditions. More water and oxygen make rusting happen faster. That is why bikes left outside in the rain rust more quickly than bikes kept in a dry garage. The rust makes the metal weaker and can cause it to break apart over time.

People try to prevent rusting because it damages valuable metal objects. Painting metal creates a barrier that keeps oxygen and water away from the iron. Some metals, like stainless steel, have other elements mixed in that resist rusting. Understanding this chemical change helps engineers design longer-lasting bridges, buildings, and vehicles.

Interesting Fact: The Statue of Liberty is not rusty brown—it is green! The statue is made of copper, not iron, and when copper reacts with oxygen and water, it forms a green substance called patina instead of rust.

What is the scientific name for rust?

Iron oxideIron waterOxygen metalChemical iron

What two things combine with iron to make rust?

Oxygen and waterAir and metalPaint and steelCopper and bronze

How is rust different from iron?

Rust is flaky and reddish-brownRust is shiny and strongRust is hard and solidRust is silver and smooth

Why do bikes rust faster in rain than in garages?

More water and oxygen speed up rustingGarages have special rust-proof paintRain makes iron strongerBikes in garages are made of different metal

How does paint prevent rusting?

It creates a barrier from oxygen and waterIt changes iron into stainless steelIt removes oxygen from the airIt makes iron harder and stronger

What would happen if a metal bridge rusted completely?

It would become weak and could breakIt would become stronger and shinierIt would turn into stainless steelIt would change back to iron

Rusting can be reversed easily back to iron.

FalseTrue

What does the word 'reacts' mean in this passage?

Combines chemically to form new substancesResponds to a question or statementMoves quickly in a certain directionChanges color but stays the same substance

Rusting Is Chemical Change

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CONTENT PREVIEW

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