Question

Three basic methods used in science are observation, experimentation and:

• A. Hypothesis
• B. Measurement
• C. Deduction
• D. Inference

Hint:

Think of the three basic tools scientists use to gather and check facts: observing, measuring and experimenting.

Answer 1

The Correct Option is B

Step 1: Science builds reliable knowledge by using a set of basic working methods, not just single steps in a fixed order.

Step 2: Observation means noticing and recording what happens around us, and experimentation means setting up controlled trials to test an idea.

Step 3: Alongside these two, science relies on measurement, which is the collection of precise numerical data using instruments. Measurement is what turns a rough observation into exact, comparable, and repeatable data, and it is used constantly during both observation and experimentation.

Step 4: A hypothesis is a proposed explanation that still needs to be tested, so it is a product of the scientific method rather than a method itself. Deduction and inference are types of logical reasoning applied to data that has already been gathered, not separate hands-on methods of doing science.

Answer: Measurement, option B.