Super Simple and Fun Paper Rocket

A4 size paper
Scissors
Rubber band(s)
Ruler

Fold and unfold the paper vertically to make crease

Make triangular folds by folding from the corners

Make a FOLD such that it acts as an angle director to the previous folds

Again make an angle director valley FOLD on the previous folds

Valley FOLD from the middle create so that both the sides overlap each other

Mark a point exactly 10.5 cm away from the tip then make a 1-1.5 cm cut using a scissors holding both sides roughly at an angle of 45 degrees

FOLD the lower flap onwards such that it just touches the middle crease

Valley FOLD from the middle then competes press the model to make it flat

Take rubber band(s) if large use one if small the make it big by connecting them

Using laws of projectile launch the rocket and have fun