Which part of the scientific inquiry process requires you to use your 5 senses? Which part requires you to gather background information? Which part of the scientific inquiry process requires testability and uses an "if/then" format?
The part of the scientific inquiry process that requires you to use your 5 senses is the observation step. This is when you use your sight, hearing, taste, touch, and smell to gather information about the natural world.
The part that requires you to gather background information is the research step. This involves collecting existing knowledge and information related to your scientific question or topic.
The part of the scientific inquiry process that requires testability and uses an "if/then" format is the hypothesis step. A hypothesis is a proposed explanation for a phenomenon, and it needs to be testable and formulated in an "if/then" format to make predictions that can be empirically tested.