science — Enhanced ACT Practice Questions

159 free Enhanced ACT questions on science: 68 easy, 63 medium, and 28 hard, every one exam-realistic and fully explained once you sign in. This is the fastest way to turn science from a weakness into a scoring area — drill it in 10-question reps with immediate feedback.

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1. An experimenter tests the effect of different light waveleng… — In this experimental design, what is the depen
2. At any given temperature, the catalyst increases the reaction rate by what factor?
3. What is the relationship?
4. Which species has a higher population at Year 5?
5. Which soil type retains the LEAST amount of water?
6. What is the pressure when the volume is 2.0 L?
7. If water has a density of 1.00 g/cm³, which liquid will sink in water?
8. As the frequency of the waves increases, the wavelength:
9. Based on the table, when the speed of the car doubles, the stopping distance:
10. What happens to the concentration of salt in the remaining liquid?
11. Do the results from the table support the biologist's hypothesis?
12. What happened to the dye molecules?
13. What is the independent variable?
14. Which confounding variable is present?
15. What will happen to the cell due to osmosis?
16. What is the primary reason the results are unreliable?
17. Based on the table, what is the concentration at t = 15 minutes?
18. A geologist hypothesizes that higher altitudes result in a l… — Which statement evaluates the hypothesis based
19. Which statement correctly describes the molecules in the ice during this process?
20. A marine biologist hypothesizes that the density of a specif… — Does the evidence support this hypothesis?
21. Which statement is true?
22. If the trend continues linearly between the measurements, what is the light intensity at a depth of 4 meters?
23. Which of the following stays exactly the same in both locations?
24. Based on the data below, what is the salinity at a depth of 75 meters?
25. A physicist hypothesizes that the period of a pendulum is de… — Which conclusion is best supported by these ex
26. What is the primary benefit of performing 5 trials for each angle?
27. According to the table, what is the expected displacement for a weight of 12 Newtons?
28. Based on the trend in the data, what gas volume would be expected at 35°C?
29. A researcher observes that a population of desert plants has… — This change is an example of:
30. What is the role of the 1 m square size?