Olympiad Test Level 2: Water and Rocks - 2 - Class 2 MCQ

Icecream and butter melt on heating hence, they will change into liquid when kept in sunlight.

Statement 1: Gases spread out and they do not have a fixed shape.
- Gases are composed of particles that are constantly moving and have a lot of space between them.
- Due to the high kinetic energy of gas particles, they are able to move freely and spread out to fill the entire container they are in.
- Gases do not have a fixed shape and take the shape of the container they are placed in.
Statement 2: A book is made from paper.
- Books are typically made from paper, which is a material derived from wood pulp or other plant fibers.
- Paper is processed and formed into sheets, which are then bound together to create a book.
- The pages of a book are made from paper, and the cover may be made from various materials like cardboard or fabric.
Conclusion:
From the above explanations, we can conclude that:
- Statement 1 is true because gases indeed spread out and do not have a fixed shape.
- Statement 2 is true because books are commonly made from paper.
Therefore, the correct answer is C: Both the statements are true.

A spoon can be made up of metal or plastic or wood.

Answer:
Introduction

If you are asked to bring something that feels rough, the best option would be to bring sandpaper.

Explanation

• Sandpaper: Sandpaper is specifically designed to have a rough texture, making it suitable for various sanding and smoothing tasks. It is commonly used for woodworking, metalworking, and other surface preparation purposes.


• Cotton: Cotton is a soft and breathable fabric, known for its smooth texture. It is often used to make comfortable clothing and bedding items.


• Silk Cloth: Silk is a luxurious and delicate fabric that is known for its smooth and silky texture. It is commonly used for making high-end clothing and home decor items.


• Pillow: A pillow is typically made of soft materials, such as cotton or synthetic fibers, to provide comfort and support while sleeping or resting. It has a smooth and cushiony texture.

Conclusion

Among the given options, sandpaper is the best choice if you are asked to bring something that feels rough. It is specifically designed for roughening surfaces and is commonly used for various sanding tasks.

The process of change of water (liquid) into water vapour (gas) called evaporation

States of Matter and Definite Shape:
A. Solid:
- A state of matter with a definite shape and volume.
- Particles in a solid are closely packed together and vibrate in fixed positions.
B. Liquid:
- A state of matter with a definite volume but no definite shape.
- Particles in a liquid are close together but can move past each other.
C. Gas:
- A state of matter with no definite shape or volume.
- Particles in a gas are far apart and move freely in all directions.
Answer: The states of matter that do not have a definite shape are liquid and gas.
Explanation:
- Solids have a definite shape because their particles are closely packed and arranged in a regular pattern.
- Liquids do not have a definite shape because their particles are close together but can move past each other, allowing the liquid to take the shape of its container.
- Gases do not have a definite shape because their particles are far apart and move freely in all directions, filling the entire space available to them.
Therefore, the correct answer is C: Liquid and gas as these states of matter do not have a definite shape.

A cricket ball cannot be made up of wood or metal. It is made up of rubber and leather.

Liquids do not have definite shape. They take up the shape of the container in which they are kept.