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Rationales.
Updated 2026 Questions and Answers
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Rationales
Included
, The measurable effect, outcome, or response in which dependent variable
the research is interested.
The experimental factor that is manipulated; the variable independent variable
whose effect is being studied.
A student is studying the effect of caffeine on heart rate Independent: Caffeine
of Daphnia. What is the independent and dependent Dependent: Heart Rate
variable?
A student is studying the effect of caffeine on heart rate Group A
of Daphnia. The student sets up two groups. Group A
consisted of Daphnia in neutral water similar to its
natural habitat. Group B consisted of Daphnia is an
aquatic environment with the addition of caffeine. Which
group is the control group?
Medical researchers want to test the effects of a new 100mg of a neutral substance ( sugar) in pill form taken orally (placebo)
blood pressure medicine on humans. The hypothesize
the new medicine will decrease blood pressure. They
give patients in the experimental group 100 mg of the
new medicine in a pill form that is taken orally. What
would the control group take?
What property of water leads to surface tension? Cohesion
What property or properties of water leads to capillary Cohesion & Adhesion
action?
What type of bond gives water the unique properties to Hydrogen Bonds
support life on Earth?
A student notices that the grass is wet when he walks his Adhesion
dog in the morning. The Water droplets ( dew) on the
grass are an example of water sticking to other
substances known as...
A flower is placed is a vase filled with blue colored water. Capillary Action
The blue colored water continues to diffuse into the
xylem and rise upward against the flow of gravity to the
flower. The flower turns blue. What property of water
allows water to rise against the flower of gravity and turn
the flower blue
What axis should the independent and dependent Independent: X-Axis
variable be plotted on? Dependent: Y-Axis
Synthesis Taking out water to make something larger and more complex
- in this photo water is being removed from glycerol and fatty acids in order to
build a lipid
What is the monomer of starch? Glucose
In the photosynthesis equation, which of the products is Oxygen Gas
the by-product?