Olympiad Test Level 1: Water and Rocks - 1 - Class 2 MCQ

Ice cubes are an example of which form of water?
Ice cubes are an example of the solid form of water.
Explanation:
- Water exists in three main forms: solid, liquid, and gas.
- A solid is a state of matter characterized by a fixed shape and volume.
- Ice cubes are made by freezing liquid water, causing it to solidify into a solid form.
- When water freezes, the molecules slow down and arrange themselves in a regular pattern, forming a solid structure.
- Ice cubes have a specific shape and volume, and they maintain their form until they melt back into liquid water.
- The solid form of water, such as ice cubes, has a lower energy state compared to the liquid form.
- Ice cubes can be easily distinguished from liquid water and water vapor due to their distinct physical properties.
- While water vapor is the gaseous form of water, ice cubes are solid and maintain their shape until they are exposed to higher temperatures and melt into liquid water.
In conclusion, ice cubes are an example of the solid form of water.

We breathe out carbon dioxide.

Oxygen is a gas, it is invisible to us.

Anything that occupies space and has weight is called matter.

Water vapour is a gaseous state. Water and juice are in liquid state. Pencil is in solid state.

Lunch box is made up of plastic or metal.

Rain is water, so it is an example of liquid matter. Oxygen is a gas, all solids, liquids and gases are matter.

Hand lens is an opaque object as it does not allow lightto passthrough it. Butter paper is a translucent object. Glass and hand lens are transparent objects.

The Types of Matter: Solids, Liquids, and Gases
Introduction:
Solids, liquids, and gases are three fundamental states of matter. They differ in terms of their molecular arrangement and the amount of energy possessed by their particles. Let's explore each state in detail:
1. Solids:
- Solids have a definite shape and volume.
- The particles in solids are closely packed together in an ordered arrangement.
- They have strong intermolecular forces that hold the particles in a fixed position.
- Solids do not compress easily.
2. Liquids:
- Liquids have a definite volume but take the shape of their container.
- The particles in liquids are close together but are not arranged in a fixed pattern.
- They have weaker intermolecular forces compared to solids.
- Liquids can flow and take the shape of their container.
3. Gases:
- Gases have neither a definite shape nor volume.
- The particles in gases are far apart and move randomly.
- They have very weak intermolecular forces.
- Gases can be compressed easily.
Conclusion:
Solids, liquids, and gases are all types of matter. They differ in terms of their molecular arrangement, intermolecular forces, and physical properties. Understanding these states of matter is essential in various scientific fields, including chemistry and physics.