1st Preliminary Exam SCIENCE 7

It is a systematic way of solving either scientific or real-life problems.

• Observation

• Science

• Scientific method

• Investigation

What is the process of obtaining information using your senses?

• Inquiry

• Conclusion

• Observation

• Scientific method

What is the correct order of steps in the scientific method?

• Identify the problem, make a hypothesis, test the hypothesis, draw conclusions, and analyze data.

• Identify the problem, make a hypothesis, test the hypothesis, analyze data, and draw conclusions.

• Identify the problem, analyze data, make a hypothesis, test the hypothesis, and draw conclusions.

• Make a hypothesis, test the hypothesis, analyze data, identify the problem, and draw conclusions.

What variable can be changed or manipulated?

• Dependent variable

• Experimental variable

• Independent variable

• Uncontrolled variable

What do you call a hypothesis that states a relationship between variables?

• Controlled hypothesis

• Null hypothesis

• Independent hypothesis

• Alternative hypothesis

It is a factor that can be controlled, change, or measured in an experiment.

• Variable

• Materials

• Hypothesis

• Controlled variable

Which of the following is the first step in a scientific investigation?

• Identifying the problem

• Observe

• Make a hypothesis

• Draw conclusion

Which of the following describe hypothesis?

• To watch carefully, especially with attention.

• It is a factor that can be controlled, changed, or measured in an experiment.

• It is an educated guess regarding the question’s answer.

• It is to analyzed data with statistical software.

Which of the following examples is considered as a null hypothesis?

• Age has no effect on how cell phones are used for internet access.

• There is a significant relationship between the growth of plants and the use of fertilizer.

• Age has an effect on how cell phones are used for internet access.

• There is a significant relationship between height and shoe size.

In an experiment to determine how different study times affect test scores, what would be the dependent variable?

• The amount of time spent studying

• The difficulty of the test

• The test scores

• The number of questions on the test