STAAR Science Practice Questions - State of Texas Assessments of Academic Readiness (STAAR) Science Exam - STAAR Science Practice Questions - State of Texas Assessments of Academic Readiness (STAAR) Science Exam

Question 1

A student wants to test whether the amount of sunlight affects bean plant growth. Which setup best isolates sunlight as the variable being tested?

Use the same type of bean, soil, pot size, and water amount for all plants, but place groups in different hours of light Use different types of beans in the same window and water each group when the soil looks dry Place one plant in sunlight and one plant in shade, then add fertilizer only to the shaded plant Grow one plant in sand and one plant in potting soil, both under the same lamp

Correct Answer:

Use the same type of bean, soil, pot size, and water amount for all plants, but place groups in different hours of light

Question 2

A class measures the time for a toy car to roll 2 meters on three ramp heights: 10 cm = 4.0 s, 20 cm = 2.8 s, 30 cm = 2.1 s. Which claim is best supported by the data?

Increasing ramp height makes the car take longer to travel 2 meters Increasing ramp height makes the car travel the 2 meters in less time Ramp height has no effect because every trial used the same distance The car's mass must have decreased as the ramp got higher

Correct Answer:

Increasing ramp height makes the car travel the 2 meters in less time

Question 3

A graph shows that a pond's dissolved oxygen drops sharply after a large amount of fertilizer washes into it. Which evidence would most directly support the explanation that algae growth caused the oxygen drop?

The pond water became colder after the storm Algae coverage increased greatly before the dissolved oxygen reached its lowest level The pond's depth stayed the same during the week Fish were seen near the surface after oxygen levels were already low

Correct Answer:

Algae coverage increased greatly before the dissolved oxygen reached its lowest level

Question 4

Students model erosion by pouring the same amount of water over trays of sand. Tray A is bare sand, Tray B has plastic mesh pressed into the sand, and Tray C has small pebbles on top. Which change would best improve the investigation's reliability?

Use a different water amount for each tray so every tray looks realistic Record only the tray that loses the most sand Repeat each tray setup several times and compare the average amount of sand moved Replace the sand with soil halfway through the investigation

Correct Answer:

Repeat each tray setup several times and compare the average amount of sand moved

Question 5

Which measurement tool is most appropriate for finding the mass of a mineral sample before and after it is heated?

Graduated cylinder Thermometer Triple-beam balance Spring scale only

Correct Answer:

Triple-beam balance

Question 1

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About this Exam

Prepare with the STAAR Science Practice Questions - State of Texas Assessments of Academic Readiness (STAAR) Science Exam practice quiz. This question bank includes 100 questions covering water, student, change, salt, and earth. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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STAAR Science Practice Questions - State of Texas Assessments of Academic Readiness (STAAR) Science Exam

This practice set contains 100 questions from the matching question bank and focuses on water, student, change, salt, and earth. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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STAAR Science Practice Questions - State of Texas Assessments of Academic Readiness (STAAR) Science Exam

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