• ____________________________________ are an essential part of science.

• Variables

• Questions

• Hypothses

• Answers

• Scientific questions are limited to the ___________________________ world—to material objects and energy changes you can observe directly or with scientific tools.

• natural

• fiction

• made up

• unreal

Tags

NGSS.MS-LS1-1

NGSS.MS-PS1-2

NGSS.MS-PS3-1

Scientists may start with _____________ questions— “Why do people get colds?”

• simple

• broad

• long

• hard

• Break broad questions into ___________________ questions–Can you catch a cold from someone else? Is there a relationship between getting chills and catching a cold?

• smaller

• hard

• difficult

• unanswerable

Tags

NGSS.HS-ETS1-2

• State the final question in a way that can be answered by an

 investigation or  _____________________— “Does getting chilled cause colds?”

• guess

• hypothesis

• experiment

• random thought

• Narrowing down a question often helps researchers plan an investigation 

and gather __________________________________to answer the question.

• questions

• controls

• variables

• evidence

Tags

NGSS.MS-PS3-4

• A ______________________________ is a prediction about the outcome of a scientific investigation.

• hypotheses

• variable

• control

• constant

Tags

NGSS.MS-LS2-4

Hypotheses are based on a person’s ___________________________ and previous knowledge or experience.

• guess

• life

• observation

• opinion

Hypotheses must be ________________________________!

• real

• testable

• wrong

• false

• The way a hypothesis is ____________________________ can outline a way to test it.

• answered

• reviewed

• tested

• written

Tags

NGSS.MS-LS1-5