A(n) ________________ is a test or investigation done to gather evidence.

It is very important to test only one _________________, or factors that change, at a time.

Which is an inference about the car?

Scientists use the word investigate with the following meaning __________________________.

_________ is a way of looking at the world and thinking about it.

When you ______, you offer an explanation of what you observed.

To make a guess based on what you know is to ___________.

Which word means something like the real thing but not exactly?

When you use your five senses to notice details, you _________.