A group of experimental subjects that is not exposed to a chemical or treatment being investigated in the experimental design
What is the control?
100
Amount of Potassium Nitrate used in Potassium Nitrate Lab
What is IV
100
In the Potassium Nitrate lab, the cup with no Potassium Nitrate added was the __________.
What is control?
100
An answer or prediction to the research question or the problem being posed in the experiment.
What is a hypothesis?
200
The starting point for all scientific work that asks how or why something happens.
What is the research question?
200
Name ONE constant used in the potassium nitrate lab.
What is the amount of water or 2 min stir time
200
In an experiment designed to test the effect of fertilizer on plant growth, the height of each plant.
What is dependent variable?
200
Ten seeds were planted in five different pots. Each pot had the same amount of soil and water but was given different amounts of sunlight. The height of each plant was measured after 5 days. Name the constants.
What are the amount of soil and water?
200
Something that stays the same throughout the experiment.
What is the constant?
300
The answer to the research question which may prove or disprove your hypothesis after completing the experimental design.
What is the conclusion?
300
What is the most important thing to show in the conclusion?
What is that the experimenter proved or disproved the hypothesis?
300
Type of soil used in an experiment to test how well plants grow in different soil types.
What is IV?
300
Which variable is the one that the experiment is measuring?
What is dependent?
300
Steps that are taken to the prove the hypothesis and must be reproducible by others
What is the procedure?
400
The _____ variable is known as the _____-this may be based on how you manipulate another part of the experiment.
What is dependent AND measure?
400
In an experiment, scientists study the effect of the ________________ variable by manipulating the amount or frequency of it.
What is independent?
400
The decision on whether to store your potato near the window or under the cabinet
What is IV?
400
Why is it a good idea to carry out many trials of an experiment?
What is because it gives you a more accurate result to prove/disprove your hypothesis and reduces error?
400
Which variable - dependent or independent - is the one that responds to the changes made by the experimenter?
What is the dependent variable?
500
The part of the experiment that is controlled, varied, and/or manipulated by the experimenter.
What is the independent variable?
500
Why is writing a clear and detailed procedure such an important step in "real world" science experimental design?
What is so that their work can be successfully reproduced in other labs?
500
Ten seeds were planted in five different pots. Each pot had the same amount of soil and water but was given different amounts of sunlight. The height of each plant was measured after 5 days. Name the IV and DV.
IV=Amount of sunlight
DV=height of plant
500
Name the IV, DV, and 2 constants in the Snack Lab.
IV= snack food
DV= fat stain
constants= paper towel, time of experiment
500
The ____________ variable causes a change in the ____________ variable.