Nature of Science Practice State Test - 2 answers

Front

What is the best interpretation of a graph showing temperature changes over time?

Back

The greatest increase in temperature took place between points 2 and 3.

Front

What does the term 'theory' mean in a scientific context?

Back

A theory is a widely accepted general explanation that has been supported with strong evidence.

Front

How does the density of water change with temperature?

Back

The density of water increases, then decreases with temperature.

Front

Why do scientists replicate experiments?

Back

To confirm the results of the experiment conducted by the scientist.

Front

What is the outcome (dependent) variable in an experiment?

Back

The number of leaves the plants grow.

Front

What is a hypothesis?

Back

A hypothesis is a testable prediction about the relationship between variables.

Front

What is the independent variable in an experiment?

Back

The factor that is changed or manipulated by the scientist.

Front

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

Back

To provide a baseline for comparison against the experimental group.

Front

What is the scientific method?

Back

A systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics, while quantitative data involves numerical measurements.