Scientific Method Flashcard

Front

What is the first step of the scientific method?

Back

Forming a hypothesis

Front

For a hypothesis to be considered valid it must be __________________.

Back

testable and measurable

Front

In an experiment, which variable is deliberately changed?

Back

Independent variable

Front

Which of the following is an example of a qualitative observation? The liquid is blue. The mass of the object is 2 kg. The temperature is 25°C. The height is 5 cm.

Back

The liquid is blue.

Front

Which of the following scenarios best illustrates the use of a control group? A researcher tests a new fertilizer on one plant and compares its growth to another plant with no fertilizer. A teacher compares test scores of students in different grade levels. A doctor surveys patients about their preferences for different medications. A chef tastes different recipes to determine which is best.

Back

A researcher tests a new fertilizer on one plant and compares its growth to another plant with no fertilizer.

Front

What type of data is collected if participants rate their satisfaction on a scale from 1 to 5?

Back

Quantitative

Front

An experiment tests how temperature affects the dissolving time of sugar in water. What is the dependent variable?

Back

Dissolving time

Front

What is the independent variable in the experiment where a scientist studies how different types of exercise affect heart rate by measuring heart rate after walking, jogging, and running?

Back

The type of exercise

Front

What is the dependent variable in the experiment where a scientist studies how different types of exercise affect heart rate after participants perform walking, jogging, and running?

Back

The participants' heart rate

Front

What ensures that an experiment is reliable?

Back

Repeating the experiment multiple times.