Ecoregions Unit Test Review

Which of the following is true about an independent variable?

• It is changed by the experimenter

• It is the results that are measured

• Effects the experimental group

• Effects the control group

A student wants to find out when the best time of day to study math is. The independent variable would be:

• The amount of studying

• Grade in Math

• The time of day

• The school subject

A student wants to find out when the best time of day to study math is. A constant would be:

• the subject math

• the amount of studying

• the day of the week

• the time of day

Which of the following is required in a hypothesis?

• Independent variable

• Dependent variable

• Constants

• Action verbs

• Predictions

A student wants to test how effective one stain remover is on different types of stains. Which of the following could be a control group for this experiment?

• different stain removers

• a shirt with no stain, treated with the stain remover

• a shirt with a stain, treated with stain remover

• amount of time the stain remover is on the stain

What is the independent variable for this experiment?

• Number of students

• Type of cereal

• Day of the week

What is the label on the y axis?

• Type of Cereal

• Favorite Cereal

• Number of Students

• Cheerios

Which are examples of qualitative data?

• written observations

• noting a color change in a reaction

• recording the temperature with a thermometer

• noting a change in texture (how something feels)

Which statement is true about quantitative data?

• It is more reliable.

• It involves written observations.

• It involves recording numbers.

• Can easily be graphed.

A student wants to record their observation that they see dew droplets on the leaves of their plant. This would be:_______.

• Qualitative Data

• Quantitative Data