Intro to Chemistry

Front

What is a qualitative observation?

Back

An observation made with your senses, describing qualities such as color, texture, or smell.

Front

What is a quantitative observation?

Back

An observation that involves measurement and numerical data, such as temperature or mass.

Front

What is a manipulated variable (independent variable)?

Back

The variable that the scientist changes in an experiment.

Front

What happens to the solubility of CO2 as the temperature increases?

Back

It decreases.

Front

What should you NOT do in a lab?

Back

Pour unused chemicals back into their original bottles.

Front

What is a conclusion in scientific experiments?

Back

A summary of the results of an experiment, explaining whether the hypothesis was supported or not.

Front

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

Back

To provide a standard for comparison against the experimental group.

Front

What is the difference between an independent variable and a dependent variable?

Back

The independent variable is changed by the scientist, while the dependent variable is measured in response.

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 a hypothesis?

Back

A testable prediction about the relationship between two or more variables.