Unit 1 Test Review S138

Front

What is the difference between a theory and a hypothesis?

Back

A theory is supported by multiple tests and evidence, while a hypothesis is a testable prediction.

Front

List the metric units from smallest to largest.

Back

milligram, centigram, gram, kilogram

Front

In an experiment testing the effect of sugar concentrations on plant growth, what is the independent variable?

Back

Percent sugar solution

Front

What can be inferred about the temperature for E.coli bacterial growth?

Back

E. coli does not grow well at low and high temperatures.

Front

In an experiment on plants with different liquids, what are the constants?

Back

Type of plant, amount of music, and sunlight.

Front

Define a hypothesis.

Back

A testable prediction about the relationship between variables.

Front

What is an independent variable?

Back

The variable that is changed or controlled in a scientific experiment.

Front

What is a dependent variable?

Back

The variable that is measured or tested in an experiment.

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 purpose of a control group in an experiment?

Back

To provide a baseline for comparison against the experimental group.