Biology 2022 Semester Test Review

Th parrots range from bright green to dark red.

• Quantitative data

• Qualitative Data

Your teacher has asked you to explain the difference between quantitative and qualitative observations. Which statement is correct?

• Quantitative observations use numbers, qualitative uses the senses

• quantitative observations use the sense, qualitative uses numbers

A hypothesis is a reasonable and educated ____.

• experiment

• guess

• scientist

• test

How many variables should you change in an experiment?

• none

• 1

• 2 or more

• depends on the type of experiment

Information gathered from observing a plant grow 3 cm over a two-week period is called

• inferences

• variables

• hypotheses

• data

The variable that is deliberately changed by the scientist is

• dependent variable

• independent variable

• data

• control group

The sample contained 3 different types of bacteria

• Quantitative data

• Qualitative data

A scientific hypothesis

• can be based on personal beliefs or opinions

• can be tested by experiments or observations

• does not have to be tested to be accepted as correct

• is a proven fact with much evidence to support it

If you were testing how well different dish soaps cleaned grease, the independent variable would be the

• dish type

• amount of grease

• dish soap type

• grease type

During a controlled experiment, a scientist isolates and tests

• a conclusion

• a mass of information

• a control group

• a single variable