Investigating Plant Growth Through the Scientific Method

The video tutorial explores the scientific method through a simple plant growth experiment. The presenter introduces the problem of differing plant heights and uses the scientific method to investigate. The video covers the history of the scientific method, sets up an experiment to test the hypothesis that sunlight affects plant growth, and concludes with results showing that sunlight does indeed impact growth. Key scientific concepts such as hypothesis, variables, and control groups are defined, providing a comprehensive understanding of the scientific method.

What was the initial observation that led to the investigation in the vlog?

• The plants were of different species.

• The plants were in different rooms.

• The plants had different heights.

• The plants were in different pots.

Who are credited as the principal founders of the scientific method?

• Charles Darwin and Gregor Mendel

• Isaac Newton and Albert Einstein

• Galileo Galilei and Francis Bacon

• Marie Curie and Louis Pasteur

What is the first step in the scientific method?

• Formulate a general rule

• Perform experiments

• Recognize a problem

• Make a hypothesis

What was the hypothesis made about the plants?

• Plants grow better in the dark.

• Plants need water to grow.

• Plants grow faster in colder temperatures.

• Plants grow taller with enough sunlight.

What was the setup for the experiment with the plants?

• Both plants were placed outside.

• One plant was near a window, the other under a bookshelf.

• Both plants were placed in the dark.

• One plant was watered more than the other.

How is an experiment defined in the vlog?

• A way to prove a hypothesis without testing

• A random method to test a theory

• A method to observe natural phenomena

• An organized method to test a hypothesis

What is a hypothesis according to the vlog?

• A random assumption

• A final conclusion

• An educated guess based on facts

• A proven fact

What is an independent variable in an experiment?

• A factor that is not measured

• A factor that is dependent on other variables

• A factor that is adjusted by the researcher

• A factor that remains constant

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

• To test multiple hypotheses at once

• To ensure all variables are changed

• To serve as a comparison with the manipulated group

• To alter the outcome

What conclusion was drawn from the plant experiment?

• Sunlight affects the growth of plants.

• Sunlight has no effect on plant growth.

• Plants grow better in artificial light.

• Plants grow taller without sunlight.