Question

experiment, independent variable, dependent variable, the respiration rate of a daphnia is measured in cold water, room temperature water, and hot water., bacteria are grown in a petri dish. essential oil is added to one side. after a week, the number of bacteria colonies are counted on each side, the blood pressure of a student is measured before a test. the student then takes their test and blood pressure is measured again. the study is repeated all semester., two plants are grown using the same light and soil. one plant is given tap water and the other plant is given carbonated water. their height is measured after 2 weeks., independent vs dependent #2, directions: read each experiment and identify the independent & dependent variables and drag your answer to the table, test or no test, blood pressure, height, respiration rate, type of water, number of colonies, water temperature, oil vs no oil

Explanation:

Step1: Identify independent variable for first experiment

The variable being changed is water - temperature. So, the independent variable is Water Temperature.

Step2: Identify dependent variable for first experiment

The variable being measured is respiration rate. So, the dependent variable is Respiration Rate.

Step3: Identify independent variable for second experiment

The variable being changed is the presence of essential - oil. So, the independent variable is Oil vs No oil.

Step4: Identify dependent variable for second experiment

The variable being measured is the number of bacteria colonies. So, the dependent variable is Number of Colonies.

Step5: Identify independent variable for third experiment

The variable being changed is taking a test or not. So, the independent variable is Test or No Test.

Step6: Identify dependent variable for third experiment

The variable being measured is blood pressure. So, the dependent variable is Blood Pressure.

Step7: Identify independent variable for fourth experiment

The variable being changed is the type of water. So, the independent variable is Type of Water.

Step8: Identify dependent variable for fourth experiment

The variable being measured is the height of the plants. So, the dependent variable is Height.

Answer:

Experiment	Independent Variable	Dependent Variable
Bacteria are grown in a petri - dish. Essential oil is added to one side. After a week, the number of bacteria colonies are counted on each side	Oil vs No oil	Number of Colonies
The blood pressure of a student is measured before a test. The student then takes their test and blood pressure is measured again. The study is repeated all semester.	Test or No Test	Blood Pressure
Two plants are grown using the same light and soil. One plant is given tap water and the other plant is given carbonated water. Their height is measured after 2 weeks.	Type of Water	Height