What is Life?

Life is when things grow, change, and move on their own, just like you do every day.

Life means a thing can grow, move, or change without being told to. Think of your favorite toy that moves by itself, like a robot or a toy car that zooms around the room. That’s kind of like how some living things work!

What Makes Something Alive?

A living thing usually:

  • Eats (like you eat snacks)
  • Moves (like you run or jump)
  • Grows (like your hair gets longer)

Sometimes, they also have babies, just like you will someday.

How Do Living Things Work?

Inside every living thing are tiny workers called cells. These cells work together like a team of helpers in a big factory, one group might be responsible for making food, another might help the body move, and so on. You can think of them like the people in a playground, all doing their own jobs to keep things going.

So life is just like being part of a busy, growing, moving club, and you're already in it! Life is when things grow, change, and move on their own, just like you do every day.

Life means a thing can grow, move, or change without being told to. Think of your favorite toy that moves by itself, like a robot or a toy car that zooms around the room. That’s kind of like how some living things work!

Take the quiz →

Examples

  1. A single-celled organism uses energy to grow and reproduce.
  2. Plants use sunlight, water, and carbon dioxide to make food.
  3. Animals breathe in oxygen and release carbon dioxide.

Ask a question

See also

Discussion

Recent activity

Categories: Philosophy · life· biology· science