WorksheetsUnit 1 Test Review - Lab Safety, Scientific Method & Measurement
Total questions: 25
Worksheet time: 17mins
The above figure indicates...
Biological Safety
Chemical Safety
Radioactive Safety
Animal Safety
When heating a test tube, C.J. should NOT...
point the opening away from himself and others
heat it along its length in order to distribute the heat evenly
use a test tube holder to avoid burning his fingers
point the opening directly at his lab partner
The shown chemical safety warning means that the chemical is capable of...
destroying human health if ingested
burning instantaneously
wearing away through a chemical action
expanding with force and creating a noise
Which method is usually NOT used to collect data in the laboratory?
looking for a color change
feeling for the production of heat
listening for the escaping of gases
testing by taste
Which is an SI metric unit of measurement that is used to record the heat transfer of solution in a classroom investigation?
volt
liter
degree Celsius
Newton
Which metric unit should be used to measure the length of a flea's leg?
meter
hectometer
decimeter
millimeter
Which metric prefixes means 0.01?
milli-
hecto-
deci-
centi-
Which piece of laboratory equipment should be used to correctly measure the volume of a liquid?
a test tube
a graduated cylinder
an unmarked erlenmeyer flask
a triple beam balance
Which of the following is used to measure the mass of an object?
barometer
metric ruler
graduated cylinder
balance
The metric abbreviation for millimeter is...
mm
cm
milli-
m
Where should the student position himself to read the graduated cylinder properly?
A.
B.
C.
D.
Juan wanted to know if different brands of tires would make his model car go faster. Juan correctly set up an experiment to test 4 different brands of tires on his model car. He recorded his data in the data table.
According to the data table, how many times did Juan conduct the experiment using Brand C tires?
three
two
four
one
What is referred to as a measure of the force of gravity acting on an object?
density
mass
weight
volume
This data table shows the results of an investigation. What information should be used for the column headings marked X?
predicted value for the results
number of seeds
trial number
average of the data in each column
Kyle uses a meter stick to measure a paperclip. What length is the paperclip shown, in SI (metric) units?
2 in
5.0 m
5.0 cm
.005 cm
Which instrument would most accurately and precisely determine the mass of a toy car?
an electronic light meter
a graduated cylinder
a spring scale
a triple-beam balance
Convert 9.24 centimeters to hectometers.
0.000924 hm
924 hm
92.4 hm
92 400 hm
Jason investigated the effect of various colored lights on plant growth. He hypothesized that plants will grow taller under a blue light. He grew forty bean plants: ten under green light, ten under red light, ten under blue light, and ten under white light. All plants received the same amount of light and water. All plants were also grown in the same type of soil and same size pot. Jason collected data on his plants each week for six weeks. After reviewing the data, Jason concluded that the bean plants grew best under blue light and that his hypothesis was correct.
What was Jason's Independent Variable (IV)?
the different colors of light
the type of soil
amount of water
the growth of the plant
A student suspects that there is a relationship between the amount of sunny weather in a given state and the amount of solar energy used by its inhabitants. In order to find out if this idea is correct, the student will need which information for each state?
the percentage of days that have enough sunlight to power a solar water heater
the number of sunny days per year and the amount of solar power used per year
the efficiency of solar technology used in that state
the location and type of solar cells used in that state
A student measures her heart rate after each of the activities listed. Based on this information, which is a constant in the student's investigation?
equipment needed for activity
length of activity time
activity performed
energy expended during activity
A lab group measured how far two rubber bands stretched when attached to 100-gram masses. Five measurements were made for each rubber band. What is the average of the data collected for rubber band B?
0.5 cm
0.3 cm
2.7 cm
2.8 cm
This experiment was set up to test the hypothesis that plants grow faster in green light. The same amount of water and fertilizer were added to each pot. Which of these would improve the experiment?
use the same kind of plant in all trials
add more types of plants
use green lights for all three plants
use different pots for each plant
Most people with a 3.6 grade point average (GPA) make a starting salary of...
30,000 - 40,000
20,000 - 30,000
40,000 - 50,000
10,000 - 20,000
In a controlled experiment, what are the two types of groups?
the x-group and the y-group
the control group and the experimental group
the independent group and the dependent group
the constant group and the variable group
Which part of an experimental procedure would be written on the x-axis of a graph?
control
independent variable (IV)
constant
dependent variable (DV)
