For example changing the volume of a balloon.
One way to measure volume of a material is the following: Put the material in a waterproof container, e.g. a tub. Submerge the material in water, register the water level, take the material out and measure what volume of water you need to add to the tub in order to make the water rise to the level it was with the material in. The volume of water you've added equals the volume of the material.
The amount of one material in a certain volume of another material?
It is the mass in that volume. There is no special name unless the volume happens to be a unit volume on some measurement scale.
In a simple way, since density = mass /volume, the density of an object can be changed by changing either mass or volume of an object .
mass.
Changing an object's volume without changing its mass can be achieved by altering its density. This can be done by increasing or decreasing the spacing between its molecules or particles, without adding or removing any material. For example, compressing a gas would decrease its volume without changing its mass.
The material is a liquid. Liquids have a definite volume but take the shape of the container they are in.
Changing the shape of an object can affect its volume. For example, reshaping a solid object may compress or expand its volume, depending on the changes made to its dimensions. However, sometimes changes in shape may not impact the volume, such as stretching a material in one direction without altering its thickness.
A cloud would be an example of something changing shape but not changing volume. As a cloud moves and disperses, its shape can change while the total volume of its water droplets remains the same.
The volume of an object can change without changing its mass if there is a change in its density. For example, if a material becomes less dense, the volume could increase while the mass remains the same. This can happen through physical or chemical changes that affect the arrangement of molecules within the object.
To change the volume of an object without changing the mass, you could alter its density by changing its component materials. For example, replacing a heavier material with a lighter one or adjusting the shape of the object to increase or decrease the volume while keeping the mass constant. Additionally, you could change the pressure or temperature surrounding the object which may lead to a change in volume without affecting mass.
Density is a property of a material that can be measured without changing the identity of the material. It is the mass per unit volume of a substance and remains constant for a specific material at a given temperature and pressure.
Mass, volume, and density are all example of physical properties. Physical properties are any characteristic of a substance that can be observed or measured without changing the material.
Properties which can be observed without changing the material include, but are not limited to:ColourTemperatureTexture/roughnessShapeSize/area/volume, etcSmellMagnetism
Changing the size of a material does not affect its density. Density is a characteristic property of a material that remains the same regardless of its size or shape. Density is calculated by dividing the mass of a material by its volume.
changing mass and volume
It depends on what process is changing the volume. For example: the volume of fluid in a displacement experiment, or change in volume due to thermal expansion, or change in volume due to gravitational collapse (as in a dying star).