31.03.2020.
WORKSHOP FOR CHILDREN: Build a Seismograph
A seismograph is a graphical measuring instrument used to detect and record ground movement during earthquakes.
MATERIALS:
- cardboard box
- paper or plastic cup
- string
- marker pen
- scissors
- paper
- coins
- tape
INSTRUCTIONS:
- Cut off the edges of the cardboard box
- Hang the cup inside the box using string
- Make a hole in the bottom of the cup and insert a marker so it lightly touches the paper
- Add coins into the cup to increase weight and stability
- Cut paper into 4 strips and join them with tape into one long strip
- Make slots on the lower sides of the box for the paper strip
- Slowly pull the paper through the box – you should get a straight line (no earthquake)
- Shake the box – the marker will record the “earthquake”
This way you can see how a seismograph records ground motion 😊
Share your creations with us!
Authors
Petra Šparica