Different Forms Of Matter

Explanation
The correct answer is 3 because the question asks about the number of different forms matter can take. This implies that there are multiple possibilities or variations in which matter can exist. Therefore, the answer cannot be 1 or 2, as they represent a single form or two forms respectively. The answer of 3 suggests that there are three distinct forms in which matter can exist.

Explanation
An ice cube is an example of a solid form of matter because it has a definite shape and volume. In its solid state, water molecules are tightly packed together and vibrate in fixed positions. This allows the ice cube to maintain its shape and resist deformation.

Explanation
The correct answer is gas because a balloon is typically filled with a gas, such as helium or air. Gases have the ability to expand and fill the space they are contained in, which allows the balloon to inflate and take on a specific shape. In contrast, solids and liquids would not be able to fill the balloon in the same way. Air, on the other hand, is a mixture of gases and is often used to fill balloons.

Explanation
A rock is a solid form of matter. It is made up of minerals and has a definite shape and volume. Unlike gases and liquids, solids maintain their shape and do not flow or take the shape of their container. Rocks are typically hard and rigid, which is a characteristic of solids. Therefore, the correct answer is solid.

Explanation
Milk is a liquid. It is a colloidal suspension of fat globules, proteins, vitamins, and minerals in water. It has a characteristic white color and flows freely, conforming to the shape of its container. Milk is not a gas, solid, or wet, making liquid the correct answer.