Athens and Sparta was the main combatants in the peloponnesian war.
Answer:
The independent variable is the temperature of the room
Explanation:
In every experiment, there are two kinds of variables; the dependent variable and the independent variable.
The independent variable is the variable that is manipulated and its impact on the dependent variable is observed. Hence the dependent variable is that variable that changes in response to changes in the independent variable.
In this study, the performance of students was found to change as the temperature of the room changes. Hence the temperature of the room is the independent variable while the performance of the students is the dependent variable.
<u>The acids DO NOT return the pink phenolphthalein indicator. </u>Phenolphthalein in acidic solutions remains colorless but in basic solutions takes a pink color. Phenolphthalein is a weak acid. The indicator changes color, it can be magenta or pink with a pH value of 10.
Answer:
Explanation:
D is the correct answer
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The type of design the school administrator is using is known an non-equivalent control group design.
The school administrator said he wants to compare records of a school that has no lockers with that of a school that has lockers. Hence, the answer to this question is non equivalent control group.
A non equivalent control group is a treatment group and a control group which are measured and compared after getting data from both groups at the beginning and at the end of a research program.
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