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Physical Science Unit 1 Scientific Method 2 Flashcards | StudBud
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Physical Science Unit 1 Scientific Method 2
Physical Science Unit 1 Scientific Method 2
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1
Place 150,000,000 into scientific notation
1.5 x 108
15 x 108
1.5 x 10-8
.15 x 10-8
2
Read the experiment below. "Group without food commercials" is which of the following variables/groups?
experimental group
constant group
control group
dependent variable
3
How many cm are in 1 meter?
39 cm
1000 cm
10 cm
100 cm
4
Best glassware to measure precise amounts of liquid
erlenmeyer flask
beaker
graduated cylinder
pipette
5
Which object uses gas in order to heat substances in lab?
candle
oven
bunsen burner
hot plate
6
Which object uses electricity in order to heat substances in lab?
bunsen burner
candle
oven
hot plate
7
What is the dependent variable?
the variable that is changed
a variable that stays the same
the variable that is measured
the variable used for comparison
8
This type of graph is used for showing percentages.
bar graph
line graph
data graph
circle graph
9
Convert 75°F to °C
348 °C
167 °C
198 °C
24°C
10
If your lab partner’s clothes catch on fire, what is the first thing you should do?
Call 911
Get the Fire Blanket
Get the Fire Extinguisher
Tell the teacher
11
Read the experiment below. "Amount of goldfish eaten" is which of the following variables/groups?
control group
independent variable
dependent variable
constant variable
12
Precise measurements are ____________.
consistent
correct
13
What are the two most significant parts to determine in any science experiment?
the dependent variable and the independent variable
the experimental group and the control group
the constant variable and the experimental variable
the hypothesis and the experiment procedure
14
If your lab partner’s clothes catch on fire, what is the first thing you should do?
Get the Fire Extinguisher
Tell the teacher
Call 911
Get the Fire Blanket
15
Read the experiment below. "Group with food commercials" is which of the following variables/groups?
constant group
control group
independent variable
experimental group
16
Which of the following phrases is not a quantitative description?
The most common breed of bears to visit the park was American black bear.
Of the bears that visited a park in April, 65% of them were adults.
Twenty-eight bears were counted in a park during the month of April.
The average weight of the bears was 318 pounds.
17
What is the best definition of "hypothesis"?
it is a testable prediction
it is a prediction
it is the result of experimentation
it is an educated guess
18
The curve that forms in liquids in graduated cylinders.
meniscus
mescular
arc
cylinder arch
19
Which of the following is something that does not need to be included on line graph?
Y-axis
X-axis
Evenly spaced bars
Title
20
True or False: Before you start a lab you should always read the instructions.
True
False
21
What word is used to describe how to appropriately smell unknown substances in lab?
sniff
woff
inhale
waft
22
Accurate measurements are ____________.
correct
consistent
23
Read the experiment below. "Whether or not kids watch food commercials" is which of the following variables/groups?
control group
constant variable
dependent variable
independent variable
24
Convert 3,600,000 mm to km.
3.6 km
.036 km
36.0 km
.36 km
25
The best graph to show quantitative vs. quantitative data.
Bar graph
Line graph
Circle graph
Pie graph
26
What is the independent variable?
the variable that stays the same
a variable that is changed
the variable that is measured
the variable used for comparison
27
What axis does the dependent variable go on?
Y-axis
X-axis
28
Kilograms is the SI unit for _________.
volume of a solid
mass
length
volume of a liquid
29
What specific precaution is necessary for heating test tubes?
Tilt the mouth of the test tube away from you and your partners.
Look directly into the test tube to watch the substances heat up
Test tubes must NEVER be used to heat up substances.
Hold the test tube with heat resistant gloves.
30
True or False: PASS means Pull the fire extinguisher pin; Aim at the base of fire; Squeeze handle; Sweep back and forth.
False
True
31
Convert 71,000 mL to gallons.
71 gal
1.88 gal
18.8 gal
18,758 gal
32
What should you always do at the end of a lab?
Rush out of the lab
Make sure your data matches your hypothesis
Clean up
Tell the teacher
33
Used to grind solid materials into a powder
mortar and pestle
wire mesh
watch glass
crucible
34
Convert 23 cm to m
.023 m
.23 m
230 m
2.3 m
35
What axis does the independent variable go on?
X-axis
Y-axis
36
Used to transfer liquids from large to small containers
beaker
funnel
crucible
spatula
37
What is the best safety equipment for helping a person who is on fire?
fire extinguisher
safety shower
fire blanket
first aid kit
38
According to the graph, at what temperature does 300 grams of sugar dissolve in water?
95°C
95°F
60°C
60°F
39
The best graph to show qualitative vs. quantitative data. (counted items)
Bar graph
Line graph
Pie graph
Circle graph
40
What is the SI unit for temperature?
Fahrenheit
Kelvin
Celsius
41
The best graph to show quantitative vs. qualitataive data. (counted items)
Line graph
Bar graph
Pie graph
Circle graph
42
What is the correct measurement for letter B?
2.8 mm
2.9 cm
3 cm
2.8 cm
43
Convert 360 Kelvin to °F.
633 °F
87 °F
133.88 °F
188.33 °F
44
Factors that stay the same in an experiment so that the results are reliable are called…
constant variables
dependent variables
experimental variables
dependent variables
45
Liter is the SI unit for _________.
mass
volume of a liquid
volume of a solid
length
46
All of the following are steps in the scientific method EXCEPT _____.
developing a model or doing the experiement
forming a hypothesis
discarding data that doesn't match the hypothesis
observing and recording data
47
A rule or principle that describes what will happen in nature is a…
scientific law
scientific theory
scientific principle
hypothesis
