A group gets a dissolved treatment. What liquid should the untreated comparison get?
Reveal answer & explanation
The same amount of solvent without the active treatment. Keep handling and timing alike.
GED Science Flashcards & Study Review
Recall first, then reveal the answer. Browse 12 sample cards below, or use spaced review to save your personal review schedule.
Reason with experiments, evidence and scientific data. Selected foundations; check coverage for the full scope.
32 cards due or new · Ready when you are
Version r02 · Original foundation materials · No sign-up
Browse sample cards
Try recalling the idea before revealing it. Browsing these examples does not change your saved review schedule.
Learn: Plan a fair experiment
A graph starts at 50 units. Where do you read the value for a point?
Reveal answer & explanation
Read its labeled axis coordinate, using the printed tick spacing.
What two differences determine an average rate from a cumulative graph?
Reveal answer & explanation
End reading minus start reading, divided by end time minus start time.
Both room and treatment change together. Why is adding more subjects to each room insufficient?
Reveal answer & explanation
Room and treatment still vary together, so the design cannot isolate which caused the difference.
A meter repeats 51.0 g for a known 50.0 g mass. What two properties do you observe?
Reveal answer & explanation
The repeats agree closely, but they are high relative to the standard at this point.
What direct observation supports infiltration after rain?
Reveal answer & explanation
A rise in soil moisture below the surface, given no other water input.
Water is clear at one pier on two dry afternoons. Can the result describe the whole lake after storms?
Reveal answer & explanation
No. The observations describe that pier during dry conditions. Storms and other sites were not sampled.
A cart returns to its starting point. What is its displacement?
Reveal answer & explanation
Zero. The traveled distance can still be positive.
Which seasonal observation weakens a distance-only explanation?
Reveal answer & explanation
Daylight gets longer in one hemisphere while it gets shorter in the other during the same interval.
If an arrow points from food to consumer, what does grass → vole indicate?
Reveal answer & explanation
The vole obtains energy by consuming grass.
A closed model loses mechanical energy to friction. Where might the energy now be?
Reveal answer & explanation
In thermal energy or other forms inside the chosen system.
A quantity rises above its usual range. What direction does a stabilizing response push it?
Reveal answer & explanation
Down, toward the usual range.
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Coverage, sources & review status
What this collection covers
Original foundation practice for selected skills across three science domains..
The cards preview selected ideas; they do not measure readiness for the whole examination. Your personal review schedule is available in the review tool.
Author-reviewed learning materials. Independent educator review is pending; question difficulty has not been calibrated with learner results. Check coverage and gaps before planning your preparation.
Sources and preparation route
These prompts and explanations are the site's original learning materials. The reference links below support the selected skills; they are not endorsements or official examination questions.
- OpenStax Biology 2e 1.1 The Science of Biology
- OpenStax College Physics 1.3 Accuracy Precision and Significant Figures
- OpenStax Physics 2.3 Position vs Time Graphs
- OpenStax Biology 2e 46.2 Energy Flow through Ecosystems
- OpenStax Biology 2e 33.3 Homeostasis
- OpenStax Physics 9.2 Mechanical Energy and Conservation of Energy
- USGS Surface Runoff and the Water Cycle
- NASA Space Place What Causes the Seasons
- OpenStax Physics 2.1 Relative Motion Distance and Displacement