How does life begin and sustain itself?

Life begins when tiny building blocks come together to make something that can grow and move, like a little factory that makes more copies of itself. It stays alive by using food to keep going, just like you need snacks to stay active all day.

Imagine you're playing with lego bricks, and someone gives you a special instruction book. If you follow the instructions carefully, you can build something new, maybe even another person who can build more legos! That's kind of how life starts: tiny building blocks called cells use instructions from inside them to copy themselves and grow.

Once life is started, it needs food to keep going. Think about your favorite snack, when you eat it, your body turns it into energy so you can play and run around. Cells do the same thing: they take in food, turn it into energy, and use that energy to grow, heal, and stay alive.

Just like you need snacks to keep going all day, life needs food to keep growing and moving, making sure everything stays lively and happy!