Chapter 2

A good scientist will...

• believe everything they are told and listen to themselves only

• be skeptical and not listen to what other people are saying

• be curious and open minded

• be nervous and possibly change results

Tags

NGSS.HS-PS4-3

A model of a globe of the world is an example of a ______ model.

• physical

• conceptual

• mathematical

• graphical

An experiment is carried out to determine the effect of sunlight on the growth of sun flowers. What is the independent variable?

• kind of flower

• type of soil

• growth of flowers

• amount of sunlight

Tags

NGSS.MS-LS1-5

The group that does not receive the experimental treatment in an experiment is the

• experimental group

• control group

• data

• variable

What essential characteristic does a good experiment have?

• a single variable is used

• a control group is given the experimental treatment

• multiple independent variables are used

• A hypothesis that doesn't make sense

Tags

NGSS.MS-PS2-5

Why are mathematical models important?

• They are especially useful in situations with many variables

• They can be used to create useful digital images

• They can represent how a system or process works

• all of the above

Tags

NGSS.MS-ETS1-4

NGSS.MS-PS1-4

NGSS.MS-PS3-2

A good hypothesis should ______ and follow from what you already know about the situation.

• be long and wordy

• make an example

• make logical sense

• be interesting

Janet and John want to test different shaped bird feathers to see how far they will drift away in the wind. What is the dependent variable?

• the shape

• the paper

• the wind

• How far

Tags

NGSS.3-PS2-2

A scientific theory is _____.

• a statement of fact

• an explanation that has been tested over time

• occasionally proven

• a supposition

Tags

NGSS.HS-PS1-2

What is a verbal or graphical explanation for how a system works or is organized

• data

• prediction

• experiment

• conceptual model

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

NGSS.MS-LS2-3