LO: I can start to measure forces
Practical measurement activity:
Create a forceful propulsion system out of a cup and balloon. Make sure you have a safe space (outdoors preferably) and see how far you can send a soft object like a marshmallow, soft ball or ball of paper. Make sure you don't fire it at anybody else and measure the distances you reach.
Is there any difference in distance with different angles of launch?
How far are you pulling back on the balloon? How could you measure this?
HAVE FUN, BE SAFE and SCIENTIFIC.