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

• predict

• infer

• variable

• model

An _____________ is a planned way of finding answers to questions.

• predict

• infer

• investigation

• variable

Which is the one factor you change in an experiment?

• variable

• hypothesis

• model

• question

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

• infer

• observe

• predict

• hypothesis

An ___________ is a test done to gather evidence. It might support the hypothesis or it might not.

• experiment

• conclusion

• investigation

• predict

A ___________ is a statement that could answer your question.

• variable

• experiment

• observe

• hypothesis

Something that is like the real thing but not exactly is a _________.

• variable

• factor

• model

• conclusion

You draw this at the end of an investigation.

• factor

• question

• hypothesis

• conclusion

To make a guess based on what you know or think.

• predict

• conclusion

• hypothesis

• model

Scientists ask these about the world about them.

• investigation

• variables

• questions

• hypothesis