You have five senses that help you learn about the world: sight (eyes), hearing (ears), smell (nose), taste (tongue), and touch (skin). Each sense uses a different body part to take in information and send it to your brain.
Set up sensory stations: a "touch box" with mystery objects, a "smell test" with different scents, a "taste test" with sweet/sour/salty foods, a "listening walk" outside, and an "I spy" game for sight. Discuss which sense you use in each situation.
Right now, your body is collecting information about the world around you. You can see these words. You might hear sounds in the background. You can feel the chair you are sitting on. You might smell something cooking. If you ate something recently, you remember the taste. All of this information comes through your five senses.
Sight uses your eyes. Your eyes take in light and send pictures to your brain. You can see colors, shapes, sizes, and movement. Sight helps you read, recognize faces, watch where you are going, and enjoy beautiful sunsets. Close your eyes for a moment — notice how much information disappears.
Hearing uses your ears. Sound travels through the air as vibrations, and your ears catch those vibrations and turn them into signals your brain can understand. You hear music, voices, birds singing, and warning sounds like car horns. Smell uses your nose. Tiny particles float through the air from flowers, food, and other things, and your nose detects them. Smell helps you enjoy good food, notice danger (like smoke from a fire), and remember places and people.
Taste uses your tongue. Your tongue is covered with tiny bumps called taste buds that detect different flavors: sweet, salty, sour, and bitter. Taste helps you enjoy food and also warns you when something might be bad to eat (bitter and sour tastes often signal danger in nature). Touch uses your skin, which covers your entire body. You can feel pressure, temperature, texture, and pain. Your fingertips are especially sensitive, which is why you use your hands to explore objects.
Most of the time, your senses work together. When you eat a cookie, you see its shape, smell its sweetness, feel its texture, taste the chocolate chips, and hear the crunch. Your brain puts all five senses together to give you the complete experience.