Practice Test Geeks(LEAP) Louisiana Educational Assessment Program Practice Test
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Interpreting Scientific Data Flashcards

7 cards from real LEAP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Interpreting Scientific Data flashcards as text

  1. A bar graph shows plant heights after 4 weeks: Group A (no fertilizer) averaged 12 cm, Group B (fertilizer) averaged 19 cm. What does this data best support?

    Answer: Fertilizer increases plant height

    Group B plants grew taller on average, indicating fertilizer had a positive effect on plant height.

  2. A scientist records water temperature in a lake every hour. The data shows temperature rises from 6 AM to 2 PM, then falls until midnight. What type of variable is time in this experiment?

    Answer: Independent variable

    Time is the independent variable because it is deliberately tracked and does not depend on water temperature.

  3. Two students measure the length of the same pencil. Student A records 14.2 cm and Student B records 14.8 cm. What is the most likely source of this difference?

    Answer: Measurement error or different reading techniques

    Small differences between measurements of the same object typically result from human measurement error or technique variation.

  4. A line graph shows CO₂ levels in the atmosphere from 1960 to 2020. The line slopes consistently upward. What conclusion is best supported?

    Answer: CO₂ levels have steadily increased over 60 years

    A consistently upward-sloping line indicates a steady increase in CO₂ levels over the measured time period.

  5. In a table of experimental results, which row shows an outlier if the other rows all show reaction times between 0.20 and 0.25 seconds?

    Answer: Trial 9: 0.87 seconds

    An outlier is a data point far outside the range of the other values; 0.87 seconds is far above the 0.20–0.25 range.

  6. A pie chart shows that 45% of a school's waste is paper, 30% is food, 15% is plastic, and 10% is other. Which waste type makes up the largest share?

    Answer: Paper

    Paper represents 45% of the waste, which is the largest portion shown in the pie chart.

  7. A scientist graphs the relationship between sunlight hours and crop yield. The data points form a positive correlation. What does this mean?

    Answer: As sunlight hours increase, crop yield also increases

    A positive correlation means both variables increase together — more sunlight corresponds to higher crop yield.

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Sources & references

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  1. doe.louisiana.gov — Score release, passing score, test dates · verified Oct 2026