I have two questions for 7th grade Science. I've been sitting here for a while, and I am behind in school work. Please Help.

Question

_____ is the practical use of scientific knowledge to solve everyday problems and improve lives

____ are used to make complicated concepts and systems easier to study and understand.

Thanks

Answer 1

http://quizlet.com/2746280/scientific-method-flash-cards/

models

Answer 2

Thank you Ms. Sue ! (:

Answer 3

You're welcome, Jordyn.