No student devices needed. Know more
10 questions
Suppose you are performing an experiment measuring the maximum amount of table salt that can be dissolved in water as the temperature of the water increases. In this experiment, what would be the dependent and independent variables?
temperature is the independent variable; amount of table salt is the dependent variable
amount of water is the independent variable; amount of table salt is the dependent variable
temperature is the independent variable; amount of water is the dependent variable
amount of table salt is the independent variable; temperature is the dependent variable
A theory is a ____.
proposed explanation for an observation
well-tested explanation for a broad set of observations
summary of the results of many observations
procedure used to test a proposed explanation
Which of the following was a major contribution to chemistry by Antoine Lavoisier?
Metals lost mass after they were burned.
He showed that oxygen is required for material to burn.
He encouraged scientists to form explanations based on philosophical arguments.
He developed the science of alchemy.
A variable that you change during an experiment is called a(n)
Dependent variable
Independent variable
What is an observation?
Something you measure or detect with your senses.
The way you feel about something
An educated guess
A theory that has been disproved
What is the scientific method?
A systematic procedure for how to conduct a scientific experiment
The process of solving a problem
A way of making non-scientific observations
A way to summarize findings from multiple investigations
An educated guess in science is called a/an
hypothesis
procedure
conclusion
lucky
What step does every scientific experiment begin with?
hypothesis
question/problem
procedures
conclusion
Explore all questions with a free account