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WorksheetsUnit 1 Test- Lab Safety, Variables and Graphing
Total questions: 20
Worksheet time: 3mins
The variable is that is manipulated or changed BY THE SCIENTIST, on purpose is the __ variable.
independent
dependent
controlled
The data or results collected from an experiment is the __ variable.
dependent
independent
controlled
The factors in an experiment that are kept the same and unchanged are the __ variables.
independent
dependent
controlled
Ricky wants to know if the height of a ramp affects how fast a car rolls down it. What is his independent variable?
the height of the ramp
the speed of the car
the type of car he uses
the timer he uses
Sue wants to know which type of glitter glue takes the longest to dry. How long it takes for each type of glue to dry is the __ variable.
controlled
dependent
independent
Students should notify the teacher __ after an accident occurs.
after they've already left the classroom
the next day
immediately
They should never tell the teacher if an accident occurs.
According to TAILS, a __ is missing from this graph.
title
label on the y axis
label on the x axis
The independent variable is always graphed on the _ axis.
y
x
z
v
The dependent variable is always graphed on the _ axis.
y
x
z
v
When creating intervals on a graph, they must be __
consistent and evenly spaced
odd numbers
increase in increments of ten
copied directly from the data table
The independent variable in this graph is the
portion of students able to locate suitable materials
time
It cannot be determined what the independent variable is simply by looking at the graph
It is okay to chew gum during a lab.
TRUE
FALSE
Lab goggles must be worn when the teacher says to wear them.
TRUE
FALSE
It is okay to not listen to the teacher's verbal instructions before a lab and just do what the lab paper says.
TRUE
FALSE
Which of these is not part of good lab safety?
tying back long hair when working with fire
wearing closed-toe shoes
keeping your lab area clutter free
having a bottle of Gatorade at your lab area to drink from in case you get thirsty
Chemicals in the lab should _ be treated as dangerous.
always
sometimes
never
rarely
If you need to test a chemical for an odor, what is the correct method?
just getting in there and taking a big whiff
asking your neighbor to do it
you should never test chemicals for odors
wafting
A farmer measures how much rain his farm gets for a week. He measures the rain fall each day using a rain gauge and records the amount in inches. A controlled variable in this experiment would be
the amount of rain
the day of the week
the rain gauge used
Good graph titles should include ____.
the independent and dependent variables
just the dependent variable
just the independent variable
the controlled variables
What is wrong with this graph?
a label is missing from the y axis
a label is missing from the x axis
a title is missing for the graph
the intervals are inconsistent an uneven
