Scientific law and a scientific theory are the similar in that that both:

Represent large amounts of scientific evidence

Approved eye protection devices (such as goggles) are worn in the laboratory

anytime heat, chemicals, or glassware is used in the lab

If a lab experiment is not completed, you should

discuss the issue with your techer

Which is the best conclusion for this experiment?

High acidity is harmful to this type of plant

The graph below shows atmospheric CO2 levels. what conclusions can be drawn from this graph?

CO2 levels have risen at a higher rate as time progressed.

When you finish working with chemicals, biological specimens, and other lab substances, always:

Wash your hands thoroughly with soap and water.

Which of the following should be inferred about cells with semi permeable membranes?

H2O enters cell when placed in environment of high water

The variable manipulated by the experimenter in order to study changes in the outcome variable

test variable (Independent variable)

Which of the following conclusions is supported by the graph?

Infection in embanked increased during the sampling period

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Unit 1 Review

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Scientific Method, Safety, Graphing

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Questions 19

Answers

1
If a piece of equipment is not working properly, stop, turn it off, and tell
your science teacher
your lab partner
the custodian
your best friend in the class
2
Information about the natural world gathered through the senses and/or scientific instruments
Prediction
Observation
Theory
Law
3
Scientific law and a scientific theory are the similar in that that both:
Describe the events that can be observed in nature
Represent large amounts of scientific evidence
Are based on what we expect to happen
Explain why events & conditions occur in the natural world
4
Approved eye protection devices (such as goggles) are worn in the laboratory
anytime heat, chemicals, or glassware is used in the lab
to avoid eye strain
only if you don't wear glasses
to improve your vision
5
To locate a point by means of coordinates, or curve by plotted points.
Set
Chart
Plot
Line
6
If a lab experiment is not completed, you should
make up the results
discuss the issue with your techer
come in during lunch and finish while eating
sneak in after school and do the experiment alone
7
Which is the best conclusion for this experiment?
High acidity is helpful to this type of plant.
Low acidity is harmful to this type of plant.
Acid has no effect on the health of this type of plant.
High acidity is harmful to this type of plant
8
A graph that uses either vertical or horizontal bars to display countable data.
Histogram
Circle/Pie Graph
Bar Graph
Table
9
The graph below shows atmospheric CO2 levels. what conclusions can be drawn from this graph?
CO2 levels rise about the same rate for the past century.
CO2 levels have risen at a higher rate as time progressed.
CO2 levels have remained the same over the past century.
CO2 levels are responsible for global temperature change
10
When you finish working with chemicals, biological specimens, and other lab substances, always:
Wipe your hands on your clothes
Wipe your hands on a towel.
Wash your hands thoroughly with soap and water.
Treat your hands with skin lotion
11
A scientific principle based on observations, & states it to be true under certain conditions
Observation
Variable
Theory
Law
12
If a laboratory fire erupts, immediately
run for the fire extinguisher
throw water on the fire
open the windows
notify your instructor
13
A factor or condition in a scientific experiment that is purposefully kept the same
control variable
test variable (independent variable)
quartile variable
outcome variable (dependent variable)
14
The number of square units needed to cover a surface.
Set
Plot
Line
Area
15
You have been injured in the laboratory (cut, burn, etc.). First you should:
visit school nurse after class
tell your teacher at once
go see a doctor after school
apply first aid yourself
16
Which of the following should be inferred about cells with semi permeable membranes?
H2O enters cell when placed in environment of high water
Substances other than water may also cross the cell membrane
H20 leaves cell when placed in environments with low solutes
Substances other than water may block pores in cell membrane
17
Explanation for naturally occurring event developed from observations, experiments, &reasoning
Variable
Observation
Theory
Law
18
The variable manipulated by the experimenter in order to study changes in the outcome variable
quartile variable
control variable
outcome variable (dependent variable)
test variable (Independent variable)
19
Which of the following conclusions is supported by the graph?
Infection in embanked increased during the sampling period
Protozoa were more common in creek fed ponds than embanked
Protozoa reproduce faster in embanked ponds than creek-fed
Infection in creek-fed ponds remained constant

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