It's not because we're closer to the Sun. It's because the Earth is **leaning**. Imagine the Earth has a stick going right through it, from the North Pole to the South Pole. That stick is always leaning a little bit, and it always leans the same way. ### The Big Picture ``` The stick always points the same way ↗ ↗ JUNE DECEMBER Northern SUMMER Northern WINTER ↗ North Pole ↗ North Pole 🌍 ☀️ 🌍 SUN North is leaning North is leaning TOWARD the Sun AWAY from the Sun Hot + long days Cold + short days ``` See how the Earth doesn't tip back and forth? It stays leaning the same way. But as it travels *around* the Sun, sometimes the top half is leaning toward the Sun, and 6 months later it's leaning away. The top half is the Northern Hemisphere — that's where the US, Canada, and Europe are. The bottom half is the Southern Hemisphere — that's where Australia is. So when it's summer for us, it's winter in Australia! ### Why does leaning make it hot? It's the same reason a flashlight looks brighter when you point it straight down. ``` SUMMER - Sun hits us straight ☀️ ------> ☀️ ------> 🌍 Rays land in a small spot ☀️ ------> = strong and hot WINTER - Sun hits us slanted ☀️ ------> ☀️ ------> 🌍 Rays spread over a big spot ☀️ ------> = weaker and cold ``` Straight-on sunshine = more heat in one place + longer days = SUMMER Slanted sunshine = less heat + shorter days = WINTER ### Try it at home 1. Push a toothpick into an orange — that's your Earth and its stick. 2. Tilt the toothpick a little and point it at one wall. **Never change where it points.** 3. Put a lamp in the middle of the room — that's your Sun. 4. Slowly walk the orange around the lamp, keeping the toothpick tilted toward that same wall. You'll see one side of your walk where the top of the orange gets lots of lamp light, and the opposite side where the top gets very little. That's summer and winter!