Experimental Controls
Biology ⇒ Scientific Inquiry and Experimental Design in Biology
Experimental Controls starts at 7 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Experimental Controls.
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See sample questions for grade 10
A researcher is testing the effect of a new drug on blood pressure. The control group receives a sugar pill. What is the sugar pill called?
A scientist is testing a new fertilizer. She uses one group of plants with the fertilizer and another group without. What is the control group?
Describe the difference between a positive control and a negative control.
Describe what would happen if an experiment did not include a control group.
A researcher is testing the effect of a new drug on blood pressure. The control group receives a sugar pill. What is the sugar pill called?
A scientist is testing a new fertilizer. She uses one group of plants with the fertilizer and another group without. What is the control group?
A scientist wants to test if a new type of light bulb affects plant growth. She uses one group of plants with the new bulb and another with a regular bulb. Which is the control group? (1) Plants with the new bulb, (2) Plants with the regular bulb, (3) Both groups, (4) Neither group
A student is testing the effect of different amounts of sunlight on plant growth. What should the control group receive? (1) No sunlight, (2) The same amount of sunlight as the experimental group, (3) The normal amount of sunlight, (4) Extra sunlight
A scientist wants to test if a new type of light bulb affects plant growth. She uses one group of plants with the new bulb and another with a regular bulb. Which is the control group? (1) Plants with the new bulb, (2) Plants with the regular bulb, (3) Both groups, (4) Neither group
A student is testing the effect of different amounts of sunlight on plant growth. What should the control group receive? (1) No sunlight, (2) The same amount of sunlight as the experimental group, (3) The normal amount of sunlight, (4) Extra sunlight
What is the main purpose of an experimental control in a scientific investigation? (1) To increase the number of variables, (2) To provide a standard for comparison, (3) To change the outcome, (4) To confuse the results
Which of the following best describes a negative control? (1) A group where no response is expected, (2) A group where a strong response is expected, (3) A group with unknown variables, (4) A group with extra variables
Fill in the blank: A __________ control is used to check for contamination or interference in an experiment.
Fill in the blank: A __________ control is used to show that the experimental setup can produce a positive result.
Fill in the blank: A __________ is a factor that can change in an experiment.
Fill in the blank: In a controlled experiment, only the __________ variable should be changed.
Is it necessary to have a control group in every experiment? (Yes/No)
True or False: A control group can help identify errors in experimental design.
True or False: A control group can sometimes receive a standard treatment instead of no treatment.
True or False: A control group receives the experimental treatment.
