Earth - It's the big round ball we live on, and it's the only place we know of where people, animals, and plants can live., Life - What plants, animals, and people have! It means being able to grow, eat, and move. Rocks and toys don't have it., Water - The wet stuff that we drink, that fills oceans, rivers, and lakes. It's super important for all living things to stay alive., Sun - The big, bright star in the sky that gives us light and heat. It helps plants grow and keeps us warm., Photosynthesis - It's how plants make their own food! They use sunlight, water, and air to make food and oxygen., Atmosphere - The air that surrounds the Earth, like a big blanket. It helps us breathe and keeps the Earth warm., Habitable Zone - The special area around a star where a planet isn't too hot or too cold, so water can be liquid and life can live there., Temperature - How hot or cold something is. We measure it with a thermometer., Oxygen - A gas in the air that we need to breathe. It helps us stay alive., Climate - The usual weather in a place over a long time, like if it's usually hot or cold, rainy or dry.,

The Habitable Zone

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