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ACT 2026 Practice Test Science Research Summaries Free Quiz 1
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ACT 2026 Practice Test Science Research Summaries Free Quiz 1
Practice ACT 2026 Practice Test Science MCQs from Research Summaries. Get instant results with Explanation.
General5 MCQs
1. Two experiments test the effect of fertilizer on plant growth. Experiment 1 uses ample water and shows growth increases up to 50 g. Experiment 2 uses limited water and shows growth decreases after 50 g. How do the results differ?
2. Two experiments measure the rate of an enzyme-catalyzed reaction at different temperatures. Experiment 1 shows a peak at 40°C, Experiment 2 shows a peak at 50°C. What can be concluded?
3. A table shows oxygen production (mL) at different light intensities (lux): 100 → 5, 200 → 10, 300 → 15, 400 → 20. What is the relationship?
4. A table shows reaction time (s) at different enzyme concentrations: 0.5 → 20, 1.0 → 10, 2.0 → 5. What is the relationship?
5. A table shows the absorbance of a solution at different pH: pH 3 → 0.1, pH 5 → 0.5, pH 7 → 0.9, pH 9 → 0.6. At which pH is the absorbance greatest?
General5 MCQs
6. A table shows reaction rate (mM/s) with different catalyst amounts: 0.5 → 15, 1.0 → 25, 1.5 → 30, 2.0 → 33. What is the trend?
7. Two experiments measure the growth of bacteria over time. Experiment 1 shows a steady increase, while Experiment 2 shows a rapid increase then a plateau. How do the growth patterns compare?
8. Two trials measure temperature change over time. Trial 1: 0 min → 20°C, 5 min → 40°C. Trial 2: 0 min → 20°C, 5 min → 45°C. Which trial has a greater rate of temperature change?
9. A researcher varies the light duration and measures the number of flowers produced. What is the independent variable?
10. A student places potato cores in salt solutions of different concentrations and measures mass change. Data: 0% salt → +5 g, 2% salt → +2 g, 4% salt → -1 g, 6% salt → -3 g. What conclusion can be drawn?

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Conducting Body: ACT Education Corp
Frequency: 7-8 Times per Year | Time: 165 Minutes
Negative Marking: No

⚡ Test Pattern (Total: 171 MCQs):

Merit Formula: Merit_calculation = University/College Specific Weightage = Not Fixed Score_range = 1–36

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