What Is an Eclipse?
An eclipse is what happens when the Sun, the Moon and the Earth line up so closely that one of them casts a shadow on another. Because an eclipse is really just a shadow in space, it only appears when the three bodies sit almost in a straight line as the Moon travels around the Earth and the Earth travels around the Sun.
There are two main kinds. In a solar eclipse the Moon passes directly in front of the Sun and blocks its light, so part of the daytime sky goes dark. In a lunar eclipse the Earth comes between the Sun and the Moon, throwing its own shadow onto the Moon — this can turn the Moon a deep, coppery red, which is why people call it a Blood Moon.
Understanding eclipses teaches children how the Sun makes its own light while the Earth and Moon only reflect it, how shadows form when light is blocked, and why a solar eclipse must never be watched by staring at the Sun. It is a clear, hands-on way to grasp how our Sun, Earth and Moon move together in space.
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A Sky SurpriseWhat Is an Eclipse? 🌒 Sometimes the sky does something amazing in the daytime — or paints the Moon red at night! ✨ ⭐ An eclipse happens when the Sun, the Moon, and the Earth line up in a special way — so one casts a shadow on another. 👉 Tap Next to meet the three space friends who make an eclipse happen!
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Meet the Sky FamilyMeet the Sky Family 👋 Tap each one to learn its job. Tap all three! ☀️ Sun A giant ball of fire that makes its own light. 🌍 Earth Our home! It does not make light — it borrows the Sun's. 🌕 Moon Earth's rocky neighbour. It moves around the Earth. Tap a card to begin… 🔭
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The Secret of ShadowsThe Secret of Shadows 🌑 An eclipse is really just a shadow. When something blocks the light, it makes a dark shadow behind it. Try it! 💡 Light 🪨 Blocker 💡 Turn the light ON When light is blocked, where does the shadow fall? In space, the Sun is the light, and the Moon or Earth can be the blocker!
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A Solar EclipseA Solar Eclipse ☀️🌑 Drag the Moon up or down until it slides right in front of the Sun. Then it blocks the sunlight from reaching part of the Earth — day turns dark! drag me ↕ Slide the Moon into the line between the Sun and the Earth.
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A Lunar EclipseA Lunar Eclipse 🌕➡️🔴 At night, the Earth can get in the way and throw its shadow onto the Moon. The Moon turns a spooky red — people call it a Blood Moon! ☀️ Sun 🌍 Earth 🌕 Moon 🌍 Move Earth's shadow onto the Moon What colour will the Moon turn?
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Stay Safe!Stay Safe in a Solar Eclipse 🛡️ A solar eclipse is exciting — but the Sun's light can hurt your eyes badly. Which is the SAFE way to watch one? 👀 Stare straight at the Sun to see better 🕶️ Use normal sunglasses and look up 🥽 Wear special eclipse glasses, or watch a projection on the wall Pick the one that protects your eyes. ⚠️ Real rule: Never look straight at the Sun, even during an eclipse, without special eclipse glasses.
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Solar or Lunar?Solar or Lunar? 🤔 Read each clue. Is it a Solar eclipse (Moon blocks Sun) or a Lunar eclipse (Earth's shadow on Moon)? Loading… ☀️ Solar 🌙 Lunar
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You're an Eclipse Expert!You're an Eclipse Expert! 🏆 🌞🌑🌍 Brilliant work! Here is everything you discovered: An eclipse is just a shadow in space when the Sun, Moon and Earth line up. Solar eclipse: the Moon blocks the Sun, so daytime goes dark for a moment. Lunar eclipse: the Earth's shadow falls on the Moon, turning it red — a Blood Moon! Safety: never look straight at the Sun — use special eclipse glasses. 🌟 Next time an eclipse comes to Singapore, you'll know exactly what's happening in the sky. Well done, star-watcher!
Frequently asked questions
- What is the difference between a solar and a lunar eclipse?
- In a solar eclipse the Moon moves in front of the Sun and blocks its light during the day. In a lunar eclipse the Earth is in the middle and casts its shadow on the Moon at night, often making the Moon look red.
- Why does the Moon turn red during a lunar eclipse?
- When the Earth blocks direct sunlight from the Moon, a little sunlight still bends around the Earth's edges and falls on the Moon. This bent light is reddish, so the Moon glows a coppery red — the 'Blood Moon'.
- Is it safe to look at a solar eclipse?
- No. Staring straight at the Sun during a solar eclipse can badly damage your eyes, even when it looks dim. Always use proper eclipse glasses or watch through a safe indirect method like a pinhole projector.
- Why don't we get an eclipse every month?
- The Moon's path around the Earth is slightly tilted, so most months the Sun, Earth and Moon do not line up exactly. An eclipse only happens on the rarer occasions when all three fall into a near-straight line.
- What causes an eclipse to happen?
- An eclipse is caused by a shadow. When the Sun, Moon and Earth line up, one body blocks sunlight and casts a dark shadow onto another, which we see as an eclipse.
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