Answer:
See below.
Step-by-step explanation:
Hi, the internet hass tons of examples, plus some I came up with:
Jumping off a diving board: the board goes down, you go up.
A trampoline is similar.
Firing a gun: the projectile goes out, and the gun moves backwards (recoil).
Ever seen those videos where someone falls off a paddleboard by running forward or backward? They go one way, the board goes the other.
Similar for a skateboard.
A bird flying: its wings push air down while its body goes (or stays) up.
Similar to a fish swimming, its tail.
A ball bouncing. The ground doesn't move enough to see, but it applies a reaction force to the ball.
A rocket.
A jet engine.
Stretching a rubber band.