The first step in the scientific method is
a) Conducting an experiment
b) Making an observation
c) Forming a hypothesis
d) Drawing a conclusion
A hypothesis is
a) A proven fact
b) A possible explanation based on observations
c) A random guess
d) An unchangeable statement
Which step of the scientific method involves testing the hypothesis?
a) Observation
b) Experimentation
c) Conclusion
d) Analysis
Which of the following is NOT a part of the scientific method?
a) Guessing randomly
b) Observing phenomena
c) Conducting experiments
d) Analyzing data
Why is the scientific method important?
a) It provides a structured way to understand natural phenomena
b) It eliminates the need for experiments
c) It avoids making observations
d) It relies only on opinions
A well-designed experiment should include
a) Only one variable tested at a time
b) Multiple changing factors
c) No control variables
d) No hypothesis
What is a control group in an experiment?
a) The group where no variables are changed
b) The group where the hypothesis is always false
c) The group with the most changes
d) The group that is not recorded
Which of the following represents a qualitative observation?
a) The flower is red
b) The box weighs 5 kg
c) The temperature is 30°C
d) The car is moving at 60 km/h
A scientific theory is
a) A well-tested and widely accepted explanation
b) A random assumption
c) A single experiment’s result
d) An unproven hypothesis
What is the independent variable in an experiment?
a) The variable that is changed by the scientist
b) The variable that remains constant
c) The variable that is measured
d) The variable that has no effect
Which of these is an example of a dependent variable?
a) The growth of a plant in different light conditions
b) The type of soil used
c) The amount of water given
d) The temperature of the room
The final step of the scientific method is
a) Forming a hypothesis
b) Drawing a conclusion
c) Identifying a problem
d) Conducting background research
Which of the following is an example of quantitative data?
a) The leaves are green
b) The rock is rough
c) The object has a mass of 12 kg
d) The sky is cloudy
Why should experiments be repeated?
a) To ensure accuracy and reliability of results
b) To change the hypothesis
c) To prove a scientist’s opinion
d) To get different results each time
What is a scientific law?
a) A statement that describes an observed natural phenomenon
b) A theory that has been proven
c) A random guess
d) A new experiment
Why is peer review important in science?
a) It helps validate research findings
b) It allows scientists to change data
c) It slows down scientific progress
d) It replaces experiments
Which of these is an example of an inference?
a) The ground is wet, so it must have rained
b) The car is red
c) The bottle contains 500 ml of water
d) The weight of the box is 2 kg
What is the purpose of a hypothesis?
a) To make a testable prediction
b) To record experimental results
c) To analyze past studies
d) To avoid conducting experiments
Which of the following best describes an experiment?
a) A test conducted to prove or disprove a hypothesis
b) A theory that has been accepted
c) A question with no answer
d) A result without observation
What is the difference between a scientific theory and a law?
a) A theory explains why something happens, while a law describes what happens
b) A law is an unproven guess, while a theory is proven
c) A theory is a mathematical statement, while a law is not
d) A law is only valid in some countries
Which characteristic is essential for a hypothesis?
a) It must be testable
b) It must be correct
c) It should not change
d) It must not be based on observations
How can bias be minimized in an experiment?
a) Using a large sample size
b) Ignoring negative results
c) Changing the data to fit expectations
d) Conducting the experiment only once
Which of these is an example of an observation?
a) The sky is blue
b) The universe was created billions of years ago
c) People believe in different religions
d) Animals feel emotions
Which branch of science is most dependent on the scientific method?
a) Physics
b) Literature
c) Art
d) Music
The scientific method helps scientists to
a) Eliminate bias and make reliable conclusions
b) Prove personal opinions
c) Avoid conducting experiments
d) Work without evidence
What is meant by “analyzing data” in the scientific method?
a) Interpreting the results of the experiment
b) Changing the hypothesis
c) Conducting the experiment multiple times
d) Making random predictions
Which statement best describes the role of skepticism in science?
a) Questioning and testing claims before accepting them
b) Accepting every claim without proof
c) Rejecting all scientific discoveries
d) Ignoring experimental evidence
