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WorksheetsNOS Review
Total questions: 47
Worksheet time: 32mins
Which of these is true about Qualitative and Quantitative Observations?
Only one uses numbers
Both can be made during an experiment
One is more descriptive (uses words)
All of these
Which of these is not an example of a scientific process?
Inferring
Observing
Experimenting
Guessing
What is an experiment?
an experimental subject that is purposefully not tested
the variable that responds to the manipulated variable
knowledge acquired by observation or experimentation
a method of testing a hypothesis using controlled conditions and clearly defined variables
Why do we perform experiments and investigations?
To get good science grades
To learn the scientific method
To learn about the world around us
What is a dependent variable?
an experimental subject that is purposefully not tested
the variable that responds to the manipulated variable
knowledge acquired by observation or experimentation
a method of testing a hypothesis using controlled conditions and clearly defined variables
Which of the following describes a model?
the variable that is manipulated to test a hypothesis
a theory that is proven with evidence, and widely accepted as true
something used to represent, explain or illustrate a concept or an object
none of these
What is an independent variable?
the variable that is manipulated to test a hypothesis
a theory that is proven with evidence, and widely accepted as true
the variable that responds to the manipulated variable
the variable that stays the same
What is a constant variable?
Responds to the independent variable
Directly tested (and changed) by the scientist
Intentionally kept the same by the scientist
Intentionally omitted by the scientist
Examine the graph. What is the independent variable?
People in a Store
Time of Day
Chicken Pot Pie
Examine the graph. What is the dependent variable?
People in a Store
Time of Day
Chicken Pot Pie
Examine the graph. What is the busiest time of day?
10 am
1 pm
6 pm
Describe the relationship of time and shopping patterns. The ___________________ is dependent upon the ___________________.
...time of day is dependent upon the number of shoppers.
...the number of shoppers is dependent upon the time of day.
Chicken Pot Pie
What is the possible disadvantage of a model?
It's too perfect
It allows further study
It's never exactly the same as the concept
It eliminates unsafe conditions during research
Why are our five senses relevant (important) in science? Check all that apply.
Science is the only subject that mentions our senses.
Gathering experimental data begins with using our senses.
We use our senses to make direct scientific observations.
Chicken Pot Pie
Convert from m to cm: 9 meters
900 cm
90 cm
0.9 cm
0.09 cm
Convert 8 kilometers to meters
800 m
80,000 m
8,000 m
.008 m
Scientists wanted to study the effect of different flower pollen sources on the lifespan of honey bees. They studied six different groups, each with access to a combination of two different flower types. All six groups were treated the same except for type of flower source. The table below shows the average lifespan for each control group in hours.
Which flower appeared to have a better effect on the lifespan of bees?
Hydrangea
Wildflowers
Both flowers had the same effect on lifespan
Cannot be determined from the data given
Scientists wanted to study the effect of different flower pollen sources on the lifespan of honey bees. They studied six different groups, each with access to a combination of two different flower types. All six groups were treated the same except for type of flower source. The table below shows the average lifespan for each control group in hours.
Which of the following statements are supported by the data?
Bees will exhibit the longest lifespan when feeding on sunflowers, rather than any flower whether in the study or not.
When paired with tulips, daisies will result in the shortest bee lifespan as compared to tiger lilies or sunflowers
Combining all five flowers will lead to the longest lifespan for the bees
None of these
Scientists studied five species of birds native to a particular desert. The population of each species was measured at the end of each year over the course of three years that saw dramatic changes in mean daytime temperature. Scientists hypothesized that the changing temperatures would impact the total number of each bird species.
Based on the data, which bird species appeared to do worst in the year with the highest mean temperature?
White Winged Dove & Cactus Wren
Black Vultures
House Finch and Gila Woodpecker
White Winged Dove
Using your 5 senses to gather information or data is an example of
observation
prediction
inference
opinion
Mr. Krabbs wants to make Bikini Bottoms a nicer place to live. He has created a new sauce that he thinks will reduce the production of body gas associated with eating crabby patties from the Krusty Krab. He recruits 100 customers with a history of gas problems. He has 50 of them (Group A) eat crabby patties with the new sauce. The other 50 (Group B) eat crabby patties with sauce that looks just like new sauce but is really just mixture of mayonnaise and food coloring. Both groups were told that they were getting the sauce that would reduce gas production. Two hours after eating the crabby patties, 30 customers in group A reported having fewer gas problems and 8 customers in group B reported having fewer gas problems.
Which people are in the control group?
Group A
Group B
Both Groups
There is no control group
Nick wanted to perform Jose's experiment so he asked him for a copy of his procedures.
Replication
Regurgitation
Repetition
Repercussion
Shaniya performed multiple trials in her experiment to ensure that her experiment was reliable and valid.
Repetition
Repercussion
Replication
Regurgitation
Scientific Knowledge is open to change as new evidence is discovered.
True
False
What best describes the independent variable?
The variable that is controlled by the experimenter.
the variable that is measured or observed
the variable that is changed by the experimenter
the variable that is held constant
Francis conducted an experiment to investigate the type of food preferred by pillbugs. Which step most likely came last?
He analyzed his results.
He communicated his results.
He formulated a hypothesis.
He controlled variables.
How does the amount of caffeine (0mg, 30mg or 50mg) affect a student's score on a math test?
The dependent variable in this investigation is (a) .
(type the single exact word from the sentence that best represents the DV)
Alexa investigated ant behavior in a laboratory by studying how ants respond to a new food being placed in their environment. Alexa placed a sugary food, a fatty food, and a protein food near the ants to see which foods attracted the most ants.
Select the constants (controlled variables) from the list. You may select more than one correct answer.
number of ants at the food
type of food
type of ants
distance of food from ant pile
amount of food used
From list below, select statements that support the Nature of Science
Always concludes and proves
Based on votes or opinion
Can included continuous observations, questions & multiple hypothesis
New evidence can cause it to change
Based on evidence
When scientists discover that current explanations do not fit the evidence they gained thorough observations and testing, what do scientists then do?
(Select 1 or more answers)
Reject (get rid of) the explanation that does not fit the evidence.
Modify (change) the explaination that does not fit the evidence.
Continue to accept the explanation that does not fit the evidence.
Ignore the new evidence that goes against the explaination.
Controlled scientific experiments include variables. One kind of variable is an independent variable and the other kind is a dependent variable. Which statement describes the difference between an independent variable and a dependent variable?
The independent variable is changed and the dependent variable is measured.
The dependent variable is changed and the independent variable is measured.
The dependent variable is the control and the independent variable is the result.
The independent variable does not change and the dependent variable does not change.
Which purpose statement is worded the best (according to class notes)?
What method of boiling an egg is best?
Is mass changed when an egg is boiled?
How does boiling an egg affect the egg's mass?
Does boiling an egg change its mass?
Select the hypothesis that is written the best (according to the Science Fair Handbook).
I hypothesize that if students receive 0mg, 30mg or 60mg of caffeine, then the students that receive 30mg of caffeine will receive the highest scores on the math test.
If students receive 0mg, 30mg or 60mg of caffeine, then the students that receive 30mg of caffiene will receive the highest scores on the math test.
If students receive 30mg of caffeine, then the scores on will increase on the math test.
If students receive 30mg of caffeine, then they will do better on the math test.
Choose all of the tools used for measuring volume.
A student wanted to know if guinea pigs prefer living in the dark. The student placed one guinea pig in a cage with half the cage covered to simulate night time and half uncovered to simulate daylight and then watched to see if the guinea pig spent most of his time on the dark side or light side. What is wrong with this experiment?
The student should have at least three cages with a guinea pig inside to test the environmental conditions.
The student should take the guinea pig out at least twice a day so it can have company.
The student should add another guinea pig and watch what both of them do.
The student should also track how much food the guinea pig eats.
Some radish seeds were studied in this experiment. The seeds were placed in a dish lined with a moist paper towel. Choose all of the constants in this experiment.
Temperature of petri dishes
Type of seed
Number of seeds
Dish set up
Seed growth
According to the graph, what will most likely occur in the year 2020?
Carbon emissions will decrease and world population will increase.
Carbon emissions and world population will stay the same.
Carbon emissions and world population will decrease.
Carbon emissions and world population will increase.
What would be the independent variable in this problem statement:
“How does the position in which a seed is planted affect how quickly it sprouts?”
The amount of time it takes to sprout
The number of seeds planted
The position in which seeds are planted
The height of the sprouted plant
True or False: A good problem statement should always be worded so it can be answered by yes or no.
True
False
True or False: A good problem statement should always be worded as a question.
True
False
Which of the following is a correct statement about the 2 images.
The first image (left) is a graph and the second image is a data table (right).
The first image (left) is a data table and the second image is a graph (right).
They are both data tables.
They are both graphs.
