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TEST 1 practice (2020) Flashcards | StudBud
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TEST 1 practice (2020)
TEST 1 practice (2020)
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1
Science must be repeatable. choose the correct example of "repeatability"
Using crutches when uninjured will lead to an injury
A person that dyes their hair purple will have a baby born with purple hair
Water will always freeze at 32 degrees
Breaking a mirror is 7 years bad luck
2
" Which brand of dog food causes the most weight gain?"
What would the
Dependent Variable
be? (what are we measuring?)
Amount of Weight Gained
The Brand of Dog food
A group with no dog food
The Type of dog
3
Which brand of dog food causes the most weight gain?"
What would the
Constant
be? (what needs to be kept the same)
The amount of dog food given
The brand of dog food
How much weight was gained
4
A __________ Describes
what Nature does (or will do)
and is supported by a
Math formula
Law
Hypothesis
Theory
Model
5
When is 0
2
(oxygen) levels the highest?
Early in the day
Night
Mid to Late Day
6
"An object at rest will stay at rest" and "What goes up must come down" are both examples of _______
Theories
Laws
Hypothesis
Models
7
Which is an example of a Scientific "Observation?"
All are correct
Using a Telescope to view distant stars
Listening to wolves howling
Using a microscope to view bacteria
8
In an experiment, The thing that is being
Measured.
Its the Data from the experiment. Usually involves Numerical info.
Control Group
Constants
Independent Variable
Dependent Variable
9
What is a person doing when they
Listen to a Bird sing?
Asking a question
Developing a Hypothesis
Making an Observation
Stating a conclusion
10
At what temperature does this enzyme stop working?
50 degrees
25 degrees
100 degrees
70 degrees
11
According to the Table, which trend is accurate?
The higher the temperature, the lower the heart rate
The higher the temperature, the higher the heart rate
The lower the temperature, the higher the heart rate
12
What happened to the cheetah population from 1900 to 2013?
The Population Drastically Decreased
The population Increased over time
The population stayed the same
13
In an experiment, it is factors that should be kept the
Same
for every group. This prevents Bias.
Independent Variable
Dependent Variable
Constants
Control Group
14
What year was the red wolf population the highest? (approximately)
2006
1999
1992
2014
15
What would the
Dependent Variable
be in this data set?
Day
mm
Height
16
What was the U.S.A. population size in 1940? (approximately)
100 Million
150 Million
250 Million
130 Million
17
In an experiment, The variable that is
Changed or manipulated.
The thing that is
Different
in the experiment
Independent Variable
Control Group
Constant
Dependent Variable
18
Which is an example of a
"HYPOTHESIS"?
If i expose alligator eggs to chemicals, they will be born with mutations
Pirates used to keep a cat on the ship because they are good luck
Too much sun will cause skin cancer
Why do whales "sing"?
19
A scientist says "I believe that alligator eggs will be born all male is you pour warm water on them" He just made a ___
Variable
Hypothesis
Conclusion
Question
20
Sandra feeds
different types of fish food
to her goldfish. She
measures their weight after 2 weeks
.
The I.V. is ________
Two weeks
The amount of fish food
The type of fish food
The fish's weight
21
In this experiment, what is the
Independent Variable?
(the
difference
between each plant)
The type of water
How tall each plant grows
The Amount of water given to each plant
22
I give 3 different plants different brands of fertilizer (walmart, home depot, target)
What is missing in the experiment?
An independent variable
A control group
A Walrus
A dependent variable
23
The reason why we get sick, the reason why the dinosaurs went extinct, and the reason why earthquakes happen are all ___
Theories
Laws
Hypothesis's
24
What is an example of a "PsuedoScience?"
Marine Biology and Immunology
Magic and Astrology
Chemistry and Physics
Religion and Philosophy
25
Science is
Tentative
(meaning open to change) Which of the following is an example of this??
We once thought that pluto was a planet, but now we know its a dwarf planet
The earth is 6000 years old no matter what science says
Injecting Maple syrup into your blood will cure you (plz dont ever do this)
Doing drugs while pregnant can lead to serious birth defects
26
"Non-Science" includes Religion, Philosophy, and Opinions.
False
True
27
What are the steps of Scientific Method?
1. Problem 2. Hypothesis 3. Experiment 4. Collect Data 5. Make a conclusion
1.Make a Conclusion 2. Experiment 3. Hypothesis 4. Problem 5. Collect Data
1. Hypothesis 2. Experiment 3. Problem 4. Problem 5. Make a conclusion
28
What is the
optimum temperature
for this enzyme? (hint= look for highest point on the graph)
40 degrees
50 Degrees
70 degrees
60 degrees
29
An explanation
of why things happen in nature
, that has been tested
many times
is a ________
Law
Observation
Theory
Hypothesis
30
Which statement shows Quantitative (numerical) information??
The Flower is red
The room was messy
My Temperature is 101 degrees
The horse was fast
31
Why do experiments need to be repeated many times?
To prove the original scientist is a cheater
To make sure the results are valid and prevent bias
To show that the original hypothesis was wrong
32
What is the
Independent Variable
in this Data table?
Same Person
Heart Rate
Temperature
33
If new Data and evidence occurs in a study disproving what we've learned before, What will happen to the current Theory?
The Theory will go back to being a hypothesis.
The Theory will become a Law
The Theory Will Change once new evidence supports it
The Theory will never change, regardless of what new evidence shows
34
Which brand of blood pressure medicine lowers blood pressure the best after a month? The
Dependent Variable
would be _
A month
People's blood pressure
The brand of blood pressure medicine
The amount of blood pressure
