Scientific method and variables

What type of graph is best for showing changes over time?

• Bar Graph

• Pie Chart

• Line Graph

• Scatter Plot

What is the purpose of a control group in an experiment?

• To provide a baseline for comparison against the experimental group that receives the treatment.

• To ensure that the experiment is conducted in a controlled environment.

• To manipulate the variables in the experiment for better results.

• To increase the sample size of the experimental group.

What is a histogram?

• A type of pie chart that shows proportions of a whole.

• A type of line graph that displays trends over time.

• A type of bar graph that represents the frequency distribution of numerical data.

• A type of scatter plot that shows relationships between variables.

What is a bar graph used for?

• To compare quantities of different categories.

• To display data trends over time.

• To show the relationship between two variables.

• To represent parts of a whole.

Why is it important to keep conditions constant in an experiment?

• To ensure the experiment is conducted in a safe environment.

• To isolate the effect of the independent variable on the dependent variable.

• To make the experiment more interesting for participants.

• To reduce the time required for the experiment.

What is a variable in an experiment?

• A constant factor that does not change during the experiment.

• Any factor, trait, or condition that can exist in differing amounts or types.

• A specific measurement taken at the end of an experiment.

• A hypothesis that is tested during the experiment.

What is the importance of replicating experiments?

• To ensure that results are reliable and can be generalized.

• To make the experiments more complex and difficult.

• To reduce the time taken for research.

• To increase the number of variables in the study.

What is the scientific method?

• A systematic process used for scientific investigation, involving observation, hypothesis formulation, experimentation, and conclusion.

• A random approach to conducting experiments without any structured process.

• A method used exclusively in mathematics for solving equations.

• A technique for gathering data without any form of analysis.

What is the significance of peer review in scientific research?

• It ensures the validity and reliability of research findings by having other experts evaluate the work.

• It allows researchers to publish their findings without any scrutiny.

• It provides a platform for researchers to share their personal opinions.

• It eliminates the need for further research on the topic.

What is a pictograph?

• A type of graph that uses lines to represent data.

• A graph that uses pictures or symbols to represent data.

• A chart that displays data in a tabular format.

• A diagram that shows the relationship between two variables.