Zombie Apocalypse Separation Techniques

Quiz
•
Chemistry
•
7th Grade
•
Hard
Lee Coumbe
Used 49+ times
FREE Resource
22 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
You needed to purify some water from a dirty creek because it is the only water available while your escaping some zombies. What material would be best to use a filter?
Cloth
Mesh
Cotton wool
Pantyhose
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
You remember back in the good old days, when there were not zombies. You could do experiments.
You did an investigation to find out what materials were best at filtering dirty water. What was the independent variable?
the type of material
the water quality
the volume of water
the rate you poured the water
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
You remember back in the good old days, when there were not zombies. You could do experiments.
You did an investigation to find out what materials were best at filtering dirty water. What was the dependent variable?
the type of material
the water quality
the volume of water
the rate you poured the water
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
You remember back in the good old days, when there were not zombies. You could do experiments.
You did an investigation to find out what materials were best at filtering dirty water. Which is not a controlled variable?
the person doing the pouring
the water quality
the volume of water
the rate you poured the water
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In your zombie apocalypse water filtering investigation, your team mates measured the turbidity while using the pantyhose as a filter and got 650 NTU, 645 NTU, 520 NTU and 660 NTU.
Which is probably the outlier?
650 NTU
645 NTU
520 NTU
660 NTU
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In your zombie apocalypse water filtering investigation, your team mates measured the turbidity while using the pantyhose as a filter and got 650 NTU, 645 NTU, 520 NTU and 660 NTU.
What is the average turbidity?
HINT: When calculating the average you add all the trials together and divide by how many trials you do. Make sure you DO NOT include outliers.
652 NTU
645 NTU
520 NTU
660 NTU
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In your investigation what is turbidity?
How murky the water the water is
How salty the water is
The suspension
A colloid
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