Science Knowledge & Inquiry Skills Flashcards

Which type of graph would be most appropriate to display how temperature changes over 24 hours?

Answer: Line graph

A line graph is best suited for showing continuous change over time, such as temperature fluctuations throughout a day.

During a classroom investigation, students discover results that do not support their hypothesis. What is the most scientifically appropriate response?

Answer: Accept the results and revise the hypothesis accordingly

When data does not support a hypothesis, the scientific approach is to accept the evidence and revise or reject the hypothesis.

What is the primary purpose of having multiple trials in a scientific experiment?

Answer: To increase reliability by reducing the effect of random error

Multiple trials help ensure that results are reliable by reducing the impact of random errors or chance occurrences.

A student uses a hand lens to look at a leaf. This is an example of:

Answer: Using technology to enhance observation

Using a hand lens extends natural observation ability and is considered using a tool or technology to enhance scientific observation.

Which of the following is an example of qualitative data?

Answer: The flower smelled sweet and had a purple color

Qualitative data describes non-numerical characteristics such as smell, color, or texture, unlike quantitative data which uses numbers.

In an experiment testing how light intensity affects plant growth, the dependent variable is:

Answer: The height of the plant after two weeks

The dependent variable is what is measured as an outcome — in this case, plant height after being exposed to different light intensities.

A student states: 'The ice melted because the temperature of the room was above 0°C.' This statement is best classified as:

Answer: An inference

An inference is a logical conclusion drawn from observations using prior knowledge — the student inferred a cause from what they observed.