## Objects That Less or More Dense than Water

• Every material and object around us has a different density.

## Objects That Less or More Dense than Water

• Density is mass per unit volume.

### Float and Sink

• Some objects around us can float and sink in water.

• Each object has a different density.

• Objects that are less dense than water usually have many air spaces. Hence, it will float on the water surface.

 Examples of objects that float:- Ping pong ball  Leaf  Sponge  Cork

• Objects that are more dense than water usually do not have air spaces. Hence, the objects will sink in the water.

 Examples of objects that sink:- Stone  Screw  Magnet  Coin

• The density of oil, water and stone are different from one another. Hence, we can observe that the oil float on the water while the stone sink in the water.

### Water Become More Dense

• The density of water can be increase by dissolving sugar or salt in water.

• This is because dissolving sugar and salt in the water will increase the mass of the one unit volume of water.

## Objects That Less or More Dense than Water

• Every material and object around us has a different density.

## Objects That Less or More Dense than Water

• Density is mass per unit volume.

### Float and Sink

• Some objects around us can float and sink in water.

• Each object has a different density.

• Objects that are less dense than water usually have many air spaces. Hence, it will float on the water surface.

 Examples of objects that float:- Ping pong ball  Leaf  Sponge  Cork

• Objects that are more dense than water usually do not have air spaces. Hence, the objects will sink in the water.

 Examples of objects that sink:- Stone  Screw  Magnet  Coin

• The density of oil, water and stone are different from one another. Hence, we can observe that the oil float on the water while the stone sink in the water.

### Water Become More Dense

• The density of water can be increase by dissolving sugar or salt in water.

• This is because dissolving sugar and salt in the water will increase the mass of the one unit volume of water.