Describe the appearance of the material. Include its color and state (solid or liquid). Pour ¼ cup of water into a small, clear container. Measure ¼ teaspoon of the material, and carefully pour it into the container. Look at the side of the container as you pour in the material. Decide whether the material is less dense or more dense than water by observing whether the material floats or sinks. Swirl the container to see whether the material mixes with the water.

Here the given material is taken and mixed with water.

Explanation:

The amount of material and water taken are same. Hence if it is not soluble in water it should make a dense and flowy paste like material and if it is soluble in water it should this and thicker density of water should remain.

If the amount of water that we are taking is more than the material will float in water if it is not soluble and lighter than water or would sink if it is heavier than water.

This is a test of the density and solubility of the given material in water.

Explanation:

The density of a material is a measure of the weight of the material and is defined as the 'mass per unit volume.'

If the material is denser than water, then the material will sink and form a distinct layer at the bottom of the container.

However, if the material is less dense than water, then the material will float on the surface of water in the container.

On swirling the container, if the material dissolves in water then the material is soluble and mixes with water.

On the other hand, if it doesn't dissolve and forms a distinct layer either on the surface or at the bottom of the container, then the material is insoluble in water.