What is Thinner (Thickness)?

S0-SA2-0831

Grade Level:

Pre-School – Class 2

All domains without exception

Definition

What is it?

When we compare two things, 'thinner' describes the one that has less thickness. Thickness is how wide or deep something is from one side to the other. So, a thinner object takes up less space in that dimension.

Simple Example

Quick Example

Imagine you have two rotis. One is rolled out very flat, and the other is a bit puffy. The flat roti is thinner than the puffy roti because it has less thickness. It's like comparing a thin piece of paper to a thick book.

Worked Example

Step-by-Step

Let's compare the thickness of three different objects: a mobile phone, a notebook, and a coin.
---1. We measure the thickness of the mobile phone and find it is 0.8 cm.
---2. We measure the thickness of the notebook and find it is 2.0 cm.
---3. We measure the thickness of the coin and find it is 0.2 cm.
---4. Now we compare these numbers: 0.8 cm, 2.0 cm, and 0.2 cm.
---5. The smallest number is 0.2 cm.
---6. This means the coin is the thinnest object among the three.
Answer: The coin is the thinnest.

Why It Matters

Understanding 'thinner' is key in many fields! Engineers use it when designing phone screens or building materials to make things strong but not bulky. Fashion designers consider fabric thickness for clothes. It's even important for doctors when choosing the right needles for injections.

Common Mistakes

MISTAKE: Confusing 'thinner' with 'smaller' in general. | CORRECTION: 'Thinner' specifically refers to less thickness, not necessarily smaller length or width. A long wire can be thinner than a short pencil.

MISTAKE: Thinking 'thinner' always means lighter. | CORRECTION: While often true, it's not always the case. A very dense, thin metal sheet could be heavier than a thick piece of foam.

MISTAKE: Using 'thin' and 'thinner' interchangeably. | CORRECTION: 'Thin' describes an object with little thickness. 'Thinner' is used for comparing two objects, indicating one has less thickness than the other.

Practice Questions

Try It Yourself

QUESTION: Which is thinner: a credit card or a stack of 10 credit cards? | ANSWER: A credit card.

QUESTION: If a book is 3 cm thick and a ruler is 0.5 cm thick, how much thicker is the book than the ruler? | ANSWER: 2.5 cm thicker (3 cm - 0.5 cm = 2.5 cm).

QUESTION: You have three pieces of wood: Piece A is 1.5 cm thick, Piece B is 0.8 cm thick, and Piece C is 2.1 cm thick. Arrange them from thinnest to thickest. | ANSWER: Piece B, Piece A, Piece C.

MCQ

Quick Quiz

Which of these objects is likely to be the thinnest?

A cricket bat

A 100-rupee note

A brick

A school textbook

The Correct Answer Is:

A 100-rupee note is made of paper and is designed to be very flat, making it much thinner than a cricket bat, a brick, or a textbook.

Real World Connection

In the Real World

When you buy a new smartphone, one of the features often highlighted is how 'thin' it is. Manufacturers compete to make phones thinner and lighter, using advanced materials and compact designs. This 'thinner' design makes phones easier to hold and carry in your pocket.

Key Vocabulary

Key Terms

THICKNESS: how wide or deep something is | COMPARE: to look at two or more things to see how they are similar or different | DIMENSION: a measurable extent of a particular kind, such as length, breadth, or height | OBJECT: a material thing that can be seen and touched

What's Next

What to Learn Next

Now that you understand 'thinner', you can explore 'thicker' to learn about objects with more thickness. You can also learn about other comparisons like 'taller' and 'shorter', which are all about understanding different dimensions!