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- 1. Multiple Choice
Which of the following is a data table?
- 2. Multiple Choice
Which data below matches the data presented in the graph?
Jan 4 cm
Mar 5 cm
May 14 cm
Jan 4 cm
Mar 5 cm
May 13 cm
Jan 5 cm
Mar 6 cm
May 14 cm
Jan 4 cm
Mar 5 cm
May 5 cm
- 3. Multiple Choice
Examine the line graph below. If the population of Centerville continues to increase at the same rate, what will the population be in the year 2010?
16,000 people
6500 people
9500 people
8000 people
- 4. Multiple Choice
Joseph counted all of the different trees in the woods near his house. He made a graph showing his results. Which of the following conclusions can Joseph draw from his graph?
There are more elms than oaks in the woods near his house.
Cedars are the tallest trees in the woods near his house.
There are 95 trees in the woods near his house.
Maple trees are not able to grow in the woods near his house.
- 5. Multiple Choice
Examine the graph. Which variable is the dependent variable?
population (in thousands)
year
- 6. Multiple Choice
What is the best definition of a conclusion?
a written description of events that occurred during an experiment
an act of recognizing and noting an occurrence by using the senses
a possible explanation of a scientific question based on observation
an explanation that uses data to support or reject a hypothesis
- 7. Multiple Choice
The one factor that a scientist changes during an experiment.
Controlled Variable
Dependent Variable
Independent Variable
- 8. Multiple Choice
The variable that is measured.
Controlled Variable
Dependent Variable
Independent Variable
- 9. Multiple Choice
The factors that stay the same or are constant throughout the experiment.
Controlled Variable
Dependent Variable
Independent Variable
- 10. Multiple ChoiceWalker is testing which fertilizer will grow the tallest grass. The height of the grown grass is the __ variable.constant (same)independent (changes)dependent (measured)
- 11. Multiple ChoiceKhaleel is testing how the use of stress balls during testing affects a student's test score. The students' average test scores who used the stress balls is the __ variable.dependent (measured)constant (same)independent (changes)
- 12. Multiple Choice
Using the information in the chart, what could you infer about the about of Arctic Sea Ice coverage in May of 2020
It will continue to be lower than average.
It will be higher than 2019
It will be back to the median between 1981 and 2010
It will be higher than the 1981-2010 median.
- 13. Multiple ChoiceA scientist performs an experiment to see if acids have an effect on the health of a particular type of plant. Three sets of plants were treated with acidic solutions of known pH while the control set was treated with a solution of neutral pH 7.Which is the best conclusion for this experiment?Acid has no effect on the health of this type of plant.B. High acidity is helpful to this type of plant.C. Low acidity is harmful to this type of plant.High acidity is harmful to this type of plant.
- 14. Multiple ChoiceThe graph below shows atmospheric carbon dioxide levels since the year 1880.Which of the following conclusions can be drawn from this graphAtmospheric carbon dioxide levels are responsible for global temperature change.Atmospheric carbon dioxide levels have been rising at about the same rate for the past century.Atmospheric carbon dioxide levels have remained the same over the past century.Atmospheric carbon dioxide levels have been rising at an increasingly higher rate as the past century has progressed.
- 15. Multiple ChoiceA research group has discovered that damselflies, a type of dragonfly, are being infected by a particular type of aquatic protozoan. Both young and adult damselflies are not directly infected by the protozoan but contract the infection from the prey they eat. The graph shows the percentage of adult damselflies infected by protozoans during the summer and early falInfection in embanked ponds increased during the sampling period.Protozoans were more common in creek-fed ponds than embanked ponds.Protozoans reproduce more quickly in embanked ponds than creek-fed ponds.Infection in creed-fed ponds remained constant throughout the sampling period.
- 16. Multiple ChoiceIn an investigation into the uptake of a protein by cells, scientists immersed two cell types in solutions of this protein. The investigation was carried out at two different temperatures and the percentage of the protein taken up by the two cell types was recorded over 10 minutes. The data was presented in a table, as shown above. Which one of the following conclusions is supported by the data?The rate of uptake of this protein at 25 °C is not affected by cell type.The percentage of this protein taken up by Cell type 1 is not affected by temperature.The rate of uptake of this protein by Cell type 2 is faster at 37 °C than at 25 °C.If the experiment continued for another 10 minutes, the percentage of this protein taken up by Cell type 1 would increase.
- 17. Multiple ChoiceWhat is the general order of the steps of the scientific methods:question, experiment, hypothesis, analyze, results, conclusion, communicate results.question, hypothesis, experiment, analyze results, conclusion, communicate resultsquestion, hypothesis, experiment, analyze results, communicate results, conclusionall of the above
- 18. Multiple Choice
Sally placed a thermometer in a cup of water. She recorded the temperature every five minutes.
What is the best claim based on this data?
A. The water gained heat.
B. The water lost heat.
C. The water lost mass.
D. The water gained cold.
- 19. Multiple Choice
In the graph to the right, what is the population of deer at the carrying capacity of the environment?
3
7
70
40
- 20. Multiple Choice
According to the graph shown, what effect did the brown tree snake have on the birds in Guam?
The snakes had no effect on the bird populations.
The snakes caused a decline in the number of bird populations.
The snakes formed a mutualistic relationship with the birds.
The snakes caused an increase in the number of bird populations.
- 21. Multiple ChoiceA scientist collected the following data on algal growth during an experiment:
Which of the following conclusions could be drawn from the data?Algae multiply most rapidly at 35°C.Algae multiply most slowly at 20°C.Algae multiply most slowly at 10°C.Algae multiply most rapidly at 20°C. - 22. Multiple ChoiceWhat is this graph showing you?The worlds population is staying the same.The worlds population is going down (decreasing).The worlds population was growing but now is decreasing.The worlds population has been growing and will continue to grow.
- 23. Multiple ChoiceWhen experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?DependentIndependentControlConstant
- 24. Multiple Choice
The scientific method can best be described as
data recorded as measurements
a logical explanation to a question or situation based on past knowledge and experience
cyclical process including asking questions, making inferences, developing hypotheses, gathering data and drawing conclusions that leads to additional questions
analysis of data that will support, fail to support or contradict a hypothesis
- 25. Multiple Choice
A student wants to conduct an experiment to test the effects of different colors of light on the growth of aquatic plants. She will use red, blue, green and purple lights in different aquariums and will measure the growth of the aquatic plant Elodea over 6 weeks. Which of the following is true about the experiment?
The different colors of the lights is the dependent variable
The growth of the Elodea is the dependent variable.
The different colors of the lights is the controlled variable.
Both the different colors of the lights and the growth of the Elodea are controlled variables
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