If you push a friend in line, the effect of this transfers from one person to another. In this case, the energy travels from one place to another without actual movement of particle. The disturbance you created is called wave.

If you throw a ball, the ball carries energy with it. It is called particle. Earlier, we had perception that if a thing is behaves as particle it cannot behave as wave and vice versa. But, in case of light, the light behaved differently in different condition. So, it showed dual nature.

Eg. Yarshagumba(Cordyceps Sinensis) acts as both plant and insect. We categorized plant and insect in different category. Later, we found that this living being acts as both. So, it behaves as plant and insect in different cases.