1.wat is the material or energy that goes into a system
2. what is a group of parts that work together to perform a function or produce a result.
3.output that changes a system in some way is called?
true or falses if false put the correct one in for it for the next 4
4.mathematical equations and word descriptions are examples of models of PROCESSES?
5. scientists us models to understand things they CAN observe directy.
6. when they use models scientists keep in mind that predictions based on models areCERTAIN
7. what happen in a system is callled INPUT

Question

1.wat is the material or energy that goes into a system 
2. what is a group of parts that work together to perform a function or produce a result. 
3.output that changes a system in some way is called? 
true or falses if false put the correct one in for it for the next 4 
4.mathematical equations and word descriptions are examples of models of PROCESSES? 
5. scientists us models to understand things they CAN observe directy. 
6. when they use models scientists keep in mind that predictions based on models areCERTAIN 
7. what happen in a system is callled INPUT