Projects marked with an asterix* are accompanied by a worksheet for pupils. You can access these here. You can find all the projects on Scratch here  
There are also some further projects to stretch pupils in this studio:
Traffic light Scratch resource

Traffic lights – physical system*


Explore –

 Explore a simple physical system of button and traffic light.

Triceratops scratch project



Explore the different inputs that change what happens to the triceratops.

Automatic doors scratch project

Automatic Doors*



Explore the model of an automatic door – requires a webcam to work

Automatic Home*


Explore the automatic home which emulates a number of different sensors. The Debug project contains three errors to correct