diff --git a/docs/lessons/seismograph/activity.md b/docs/lessons/seismograph/activity.md
index 9b8825ff..e20e928e 100644
--- a/docs/lessons/seismograph/activity.md
+++ b/docs/lessons/seismograph/activity.md
@@ -10,7 +10,7 @@ Engineering: In this project, you will build your own seismograph micro:bit from
 
 ## What you'll need: 
 
-* micro:bit 
+* BBC micro:bit 
 * micro USB cable
 * Plate 
 * Tape 
diff --git a/docs/lessons/seismograph/challenge.md b/docs/lessons/seismograph/challenge.md
index d3f3377b..dd1e883d 100644
--- a/docs/lessons/seismograph/challenge.md
+++ b/docs/lessons/seismograph/challenge.md
@@ -11,8 +11,8 @@ Engineering: In this project, you will build a remote control based on the seism
 
 ## What you'll need: 
 
-* micro:bit (2)
-* micro USB cable (2)
+* BBC micro:bits (2)
+* micro USB cables (2) 
 * Plate 
 * Tape 
 * Scissors