Water Quality 4/4

Faster filtration is better.

• true

• false

Filtration works mainly on the physical process know as ___________.

• absorption

• adsorption

• anaerobic

• absolution

A form of pollution that gets into the water supply is called:

• a bacteria

• a fungus

• a contaminant

• a plant vitamin

The accumulation of gases, liquids, or dissolved substances on the surfaces of solids.

• Air Cleaner

• evaporation

• Absorption

• Adsorption

What is the primary goal of the design process?

• To write reports

• To make things

• To make charts and graphs

• To find solutions to problems

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

It is very important to have this first prototype created and _______ before continuing on to create a more complex model. This will save time and effort in the engineering process.

• tested

• painted

• approved

• viewed

Tags

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

Which word best describes a constraint?

• option

• opportunity

• limitation

• goal

Tags

NGSS.MS-ETS1-1

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When generating a solution, a designer creates either a model or a ________________.

• drawing

• report

• design brief

• prototype

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-4

Which of these describes an iteration?

• knowing the constraints before starting to design a solution

• identifying all aspects of a problem before starting to find solutions

• coming up with several possible solutions before making a prototype

• testing a prototype, making one change, then making an improved prototype

Tags

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

Engineers only change one variable at a time so we can determine which variable made a difference.

• True

• False

Tags

NGSS.MS-ETS1-4