NEW
Font size
WorksheetsExperiments /pH Lab Review 2022
Total questions: 25
Worksheet time: 2hrs 5mins
Ben wants to know if a branch will be as buoyant in salt water as in fresh water. Ben using different types of water is the ....
IV
DV
A Constant
A Control
Ben wants to know if a branch will be as buoyant in salt water as in fresh water. Ben measuring the buoyancy level is the....
IV
DV
Constant
Control
Ben wants to know if a branch will be as buoyant in salt water as in fresh water. Ben using the same type and size containers in the experiment is the
IV
DV
Constant
Control
Ben wants to know if a branch will be as buoyant in salt water as in fresh water. Ben using the salt water to compare it to the fresh water is the ....
IV
DV
Constant
Control
Ben wants to know if a branch will be as buoyant in salt water as in fresh water. What should Ben do, after he makes a conclusion, to be certain his results are accurate/valid?
repeat the experiment
change the salt water
change the IV
change the DV
Density is...
V/M (divided by)
M/V (divided by)
mass x volume
mass + volume
Ben wants to know if a branch will be as buoyant in salt water as in fresh water. Ben starts reading about buoyancy on a website and some books. What step in the scientific method is this?
purpose/question
hypothesis
research
collecting data
Ben wants to know if a branch will be as buoyant in salt water as in fresh water. Ben collects data and starts making graphs and thinking about his data. What step in the scientific method is this?
purpose
conclusion
analyze data
hypothesis
Ben wants to know if a branch will be as buoyant in salt water as in fresh water. Ben predicts the branch will float best in salt water. What step in the scientific method is this?
purpose
hypothesis
reseasrch
collect data
Ben wants to know if a branch will be as buoyant in salt water as in fresh water. Ben sees the branch floating differently in the different types of water. What step in the scientific method is this?
purpose
research
hypothesis
observation
Ben wants to know if a branch will be as buoyant in salt water as in fresh water. Ben records the level the branch is floating in the data table. What step in the scientific method is this?
hypothesis
research
collect data
follow up
Ben wants to know if a branch will be as buoyant in salt water as in fresh water. Ben makes a judgement that salt water causes the branch to float best. What step in the scientific method is this?
collect data
analyze data
conclusion
repeat the experiment
The variable changed by the experimenter is...
independent
dependent
The variable that are the measurements and results of the experiment is...
independent
dependent
The part of the experiment used as the comparison is the...
control
constant
IV
DV
The parts of the experiment that must remain the same are the...
controls
constants
IV
DV
pH means...
power of helium
place of helicopters
potential of helium
potential of hydrogen
See the pH scale, if the substance turns the pH blue it is....
neutral
acidic
basic/alkaline
See the pH paper, if the pH paper turns yellow, the substance is ...
neutral
acidic
basic/alkaline
The beaker contains excess hydrogen ( H+) ions. It is
neutral
acidic
alkaline/basic
Place the unknown pH paper in order from most acidic to most alkaline/basic.
A-B-C-D
D-C-B-A
D-C-A-B
C-A-B-D
Suppose you have already compared the pH values of 2 substances using 0-14 pH paper. When would a follow-up test using 4.5-7.5 be most helpful?
when both substances have a pH of 3
when both substances have a pH of 10
when both substances have a pH of 7
when 1 substance has a pH of 2 and the other substance has a pH of 9
Based on the data table, what is the probable pH of apple juice?
3
7
8
11
Based on the data table, what is the probable pH of dish soap?
3
5
7
10
Which statement/s is an observation?
A The temperature today is 80 degrees.
B I think it will rain tonight.
C That sandwich tastes salty.
A
B
A and C
B and C
