Lesson: Ourselves and Living Things (Science Grade 1)

Hello, Grade 1 students! Today, we are going to get to know the things closest to us: "ourselves" and the "living things around us," whether they are animals or plants. Learning about this will help you understand why we can see, why trees have roots, and how we can keep our bodies healthy.

If it feels like there’s a lot to learn at first, don't worry! We’ll go through it step-by-step, just like reading a storybook.


1. Ourselves (Our Bodies)

Our bodies are made up of different parts called organs. These are divided into two main groups, but for Grade 1 students, we will focus on the external organs that we can see easily.

Components and Functions of External Organs

Try touching these parts while we talk about what they do:

  • Eyes: We have two, used for looking at things around us.
  • Ears: We have two, located on the sides of our head, used for listening to sounds.
  • Nose: We have one, in the middle of our face, used for breathing and smelling.
  • Mouth: We have one, with teeth and a tongue inside, used for speaking and eating food.
  • Hands and Arms: Used for grabbing and holding objects and supporting our bodies.
  • Legs and Feet: Used for moving around and supporting our body weight.

Key Point: All our organs work together so we can go about our day. For example, if you want to eat a snack, you use your eyes to find it, your hands to pick it up, and your mouth to chew it.

Did you know? Our skin is an organ too! It helps us feel sensations like heat or cold and protects our body.


Taking Care of Our Organs

We must always keep our organs clean and safe:

  • Eyes: Don't rub them hard and avoid reading in the dark.
  • Ears: Don't use hard objects to poke inside and avoid loud noises.
  • Nose: Don't blow your nose too hard and never put foreign objects inside your nostrils.
  • Mouth and Teeth: Brush your teeth at least twice a day (in the morning and before bed).
  • Hands and Feet: Wash your hands before eating and keep your nails cut short.

Common Mistake: Many students forget to wash their hands before eating snacks. Dirty hands can hide nasty germs that might give you a stomachache!


2. Animals and Plants Around Us

Besides us, the world is full of animals and plants, which are living things just like us.

Parts of Animals

Most animals have external organs similar to humans, but some have unique differences to suit their lifestyle, such as:

  • Eyes, Ears, Nose, Mouth: Used for seeing, listening, smelling, and eating, just like us.
  • Legs and Feet: Some have four legs (dogs, cats), some have two (chickens, birds), and some have none at all (snakes).
  • Wings: For animals that can fly, such as birds or butterflies.
  • Fins and Tails: For animals that swim, like fish.

Try Comparing: If you wanted to fly, you would need wings like a bird! But if you wanted to swim as well as a fish, you would need fins!


Parts of Plants

Plants might look like they are standing still, but their parts are hard at work:

  • Roots: Anchor the plant to the ground and absorb water and minerals (just like how we use a straw to drink).
  • Stem: Holds up the branches and leaves, and acts as a pathway to transport food.
  • Leaves: Their job is to make food using sunlight (leaves are like the plant’s "kitchen").
  • Flowers: Used for reproduction (to grow new plants).
  • Fruits and Seeds: The seeds inside can be planted to grow new plants.

Key Point: Most plants are green because they contain a special substance that helps them make food from sunlight.


3. Where Living Things Live (Habitats)

Each type of living thing chooses to live in a place that is suitable for them, called their environment.

  • Grasslands: You might find cows, buffaloes, or rabbits eating grass.
  • Under trees: You might find ants, millipedes, or plants that love the shade.
  • Water bodies (ponds, canals): You might find fish, lotus flowers, or frogs.

Did you know? If the environment changes, such as water becoming polluted or forests being destroyed, living things lose their homes and might die. That is why we must work together to protect nature!


Key Takeaway

1. Our Bodies: We have organs with different duties, and we must keep them clean.
2. Animals: Have organs that help them move and find food according to their nature.
3. Plants: Use roots to absorb water, leaves to make food, and flowers for reproduction.
4. Homes of Living Things: Each type lives in a habitat best suited for its survival.

Memory Trick:
- Eyes see, ears hear, nose smells, mouth tastes.
- Roots absorb, leaves cook, stems transport, flowers bloom beautifully.

Keep studying hard and observing the things around you! You will discover that science is everywhere!