it uses newtons laws of motion
computer opreater
scinece
scinece
This probably refers to applied mathematics.
science is where you can learn about planets, germs, chemicals, experiments and etc.
catapult
you make a catapult!
well you can buy them at like art stores or scinece
Isaac Asimov.
MATHS ENGLISH SCINECE
A Trebuchet Catapult
Catapult is a noun.