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Shadow Clock

Science⏱ 15 minAge 5+
🧑‍🤝‍🧑

Do this with a grown-up. Never look straight at the sun.

🧰 You need

  • ☀️a sunny day
  • ✏️a pencil in a lump of clay
  • 📄a big sheet of paper
  • 🖍️a crayon

👣 Let’s do it

  1. 1Stand the pencil in clay on the paper in a sunny spot.
  2. 2Draw a line where the shadow ends. Write the time.
  3. 3Come back each hour and draw the new line.
  4. 4Look at all your lines.
  5. 5Which time had the shortest shadow?

👀 What will you see?

The shadow moves and changes length through the day.