Complicated Exam On Science
This is a semi-complicated exam on science only 3 out of 20 students have passed
- 1.What is the name for the steps scientists go through to solve problems?
- A.
A. drawing conclusions
- B.
B. forming a hypothesis
- C.
C. research design
- D.
D. scientific method
- 2.How might a scientist show bias in an experiment?
- A.
A. by asking others to verify the data
- B.
B. by choosing a random sample by computer
- C.
C. by drawing conclusions without analyzing data
- D.
D. by using multiple trials to confirm data
- 3.Mike is testing the effects of friction on a toy car going down a ramp. He runs one trial with sandpaper on the ramp and another trial with cloth on the ramp. What else does he need in his experiment?
- A.
A. a control group
- B.
B. a longer ramp
- C.
C. an independent variable
- D.
D. a technology
- 4.Mike is conducting an experiment to see if his dog will eat a new brand of dog food. He will replace the dog’s old food with the new brand. Identify the dependent variable in this experiment.
- A.
A. the amount of food
- B.
B. the place the food is left
- C.
C. the type of food
- D.
D. whether the dog eats
- 5.Why is it important for scientists to present their findings to the public?
- A.
A. The public has to understand every scientific finding.
- B.
B. Scientific data can benefit society in different ways.
- C.
C. The scientist might be able to get the data published.
- D.
D. The scientist needs credit for his or her findings.
- 6.Clara is conducting an experiment to find out the number of times her lab mice received a reward for finishing a task. She is using a tally chart to keep track of each mouse and the number of rewards each receives. What is the best type of graph for her to use to analyze her data?
- A.
A. bar graph
- B.
B. line graph
- C.
C. pictograph
- D.
D. pie graph
- 7.Scientists use prior experience to ____.
- A.
A. collect data
- B.
B. make predictions about what will happen under certain circumstances
- C.
C. analyze their data
- D.
D. serve as a control in their experiments
- 8.After scientists analyze the results of their experiments, they ____.
- A.
A. form hypotheses
- B.
B. include a control
- C.
C. communicate those results to other people
- D.
D. choose the variables they want to test
- 9.Which of the following steps to solve a problem must be completed first?
- A.
A. analyzing data
- B.
B. recognizing and identifying the problem
- C.
c. forming a hypothesis
- D.
D. testing a hypothesis
- 10.Which of the following steps to solve a problem is completed last?
- A.
A. analyzing data
- B.
B. recognizing and identifying the problem
- C.
C. drawing conclusions
- D.
D. testing a hypothesis
- 11.A prediction or statement that can be tested is ____.
- A.
A. a conclusion
- B.
B. an observation
- C.
C. a control
- D.
D. a hypothesis
- 12.A factor in an experiment that can change is ____.
- A.
A. an observation
- B.
B. a variable
- C.
C. a control
- D.
D. a hypothesis
- 13.A sample that is treated exactly like the other experimental groups except that the variable is not applied to it is a(n) ____.
- A.
A. observation
- B.
B. variable
- C.
C. control
- D.
D. hypothesis
- 14.Scientists conduct multiple trials of their experiments because ____.
- A.
A. their results are more likely to be reliable
- B.
B. it costs less to run more trials than fewer trials
- C.
C. unusual occurrences are likely to be repeated every time
- D.
D. experiments always have the same results
- 15.A good way to organize and record your results and observations is ____.
- A.
A. in a data table
- B.
B. by using a calculator
- C.
C. with a balance or spring scale
- D.
D. by having a hypothesis before you begin your experiment
Questions: 20 | Attempts: 59265 | Last updated: Jul 7, 2021
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