Crafting Testable Questions in Science Experiments

Ms. Bowen introduces the concept of testable and non-testable questions, emphasizing that only testable questions can be used in the scientific method. She explains that testable questions involve changing one variable to observe its effect on another, providing examples such as the effect of water on plant growth. Non-testable questions, like preferences between ice cream and potato chips, are based on opinion and cannot be tested scientifically. The video concludes with encouragement for students to apply these concepts.

What is the primary purpose of a testable question in scientific research?

• To summarize existing knowledge

• To express personal opinions

• To entertain the audience

• To guide an experiment by identifying variables

Which of the following is a characteristic of a testable question?

• It is based on opinions

• It involves changing multiple variables

• It cannot be answered through experiments

• It is based on facts and involves measurable outcomes

Which question is an example of a non-testable question?

• Does the amount of sunlight affect plant growth?

• Does fertilizer increase the size of tomatoes?

• What is the best flavor of ice cream?

• How does temperature affect the rate of evaporation?

How does a testable question differ from a general question?

• It is based on opinions

• It is less detailed

• It specifies what will be changed and measured

• It is more entertaining

What is the variable being changed in the testable question: 'How does the amount of water affect the size of tomatoes?'

• The size of the tomatoes

• The type of plant

• The amount of water

• The type of soil

In the testable question 'Does temperature have an effect on a magnet's strength?', what is being measured?

• The strength of the magnet

• The color of the magnet

• The size of the magnet

• The type of metal

What should you focus on when creating a testable question?

• The opinion of others

• The length of the question

• The variables that can be changed and measured

• The popularity of the topic