Free Printable WorksheetScienceGrade 11Science CurriculumNGSS SEPs/CCCs; CCSS RST.11-12.1-3, 7-9; WHST.11-12.2, 7-9; HSN-Q.A.1-3; HSS-ID; AP Chem Science Practices 1-6; ACS RAMP

11.5 Significant Figures, Precision, and Accuracy Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Chemistry Science worksheet provides structured practice on 11.5 Significant Figures, Precision, and Accuracy. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Significant Figures, Precision, and Accuracy: Report measurements and calculated results with appropriate precision, significant figures, percent error, and distinction between accuracy and precision. Aligned to NGSS, CCSS, AP Chemistry/Pre-AP Chemistry, and representative state chemistry framework crosswalks NGSS SEPs/CCCs; CCSS RST.11-12.1-3, 7-9; WHST.11-12.2, 7-9; HSN-Q.A.1-3; HSS-ID; AP Chem Science Practices 1-6; ACS RAMP - Significant Figures, Precision, and Accuracy Chemistry Standards Crosswalk: National: NGSS SEPs/CCCs; CCSS RST.11-12.1-3, 7-9; WHST.11-12.2, 7-9; HSN-Q.A.1-3; HSS-ID; AP Chem Science Practices 1-6; ACS RAMP. State frameworks: TX TEKS 112.43(c)(1)-(4); CA/NY/NJ NGSS practices; MA STE practices; FL, GA, and VA inquiry/lab-safety practices.

Whether you are an educator preparing classroom handouts, a tutor reinforcing weekly topics, or a parent supporting homeschool learning, this printable resource gives students the deliberate practice required to achieve subject fluency and master state standards.

Grade

Chemistry

Subject

Science

Domain

Science Curriculum

Formats

PDF & DOCX

Sample Practice Problems

Preview the types of problems and questions covered in this worksheet

Below are sample questions representative of the exercises included on this worksheet and related 11.5 Significant Figures, Precision, and Accuracy skill assessments:

Problem 1Difficulty: Mastery

A liquid has accepted density 0.789 g/mL. A student's trials are 0.790, 0.788, and 0.789 g/mL. Which lab-report statement is best?

AThe average must be reported as 0.7890 g/mL because there are three trials.

BThe data are precise but inaccurate because no trial has percent error exactly 0.0%.

CThe data are inaccurate because the accepted value has fewer digits than the trials.

DThe average is 0.789 g/mL, and the trials are both precise and accurate within the reported precision.

Solution & Explanation:The trials are tightly clustered and centered on the accepted value. The mean is 0.789 g/mL to the same thousandths-place precision as the measurements.

Problem 2Difficulty: Mastery

Two buret readings each have an uncertainty of ±0.02 mL. When delivered volume is found by subtracting final minus initial, what approximate absolute uncertainty should be used?

A±0.00 mL

B±0.02 mL

C±0.04 mL

D±0.01 mL

Solution & Explanation:For subtraction, absolute uncertainties from the two readings are commonly added. ±0.02 mL + ±0.02 mL gives about ±0.04 mL.

Problem 3Difficulty: Mastery

The image shows a buret before and after a titration. The initial reading is 0.06 mL and the final reading is 23.14 mL. Which delivered volume is correct?

A23.20 mL

B23.08 mL

C23.1 mL

D23.080 mL

Solution & Explanation:Delivered volume is final minus initial: 23.14 - 0.06 = 23.08 mL. Both readings are to hundredths, so the result is to hundredths.

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Frequently Asked Questions

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QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Chemistry Science students. It aligns with educational standard NGSS SEPs/CCCs; CCSS RST.11-12.1-3, 7-9; WHST.11-12.2, 7-9; HSN-Q.A.1-3; HSS-ID; AP Chem Science Practices 1-6; ACS RAMP (National: NGSS SEPs/CCCs; CCSS RST.11-12.1-3, 7-9; WHST.11-12.2, 7-9; HSN-Q.A.1-3; HSS-ID; AP Chem Science Practices 1-6; ACS RAMP. State frameworks: TX TEKS 112.43(c)(1)-(4); CA/NY/NJ NGSS practices; MA STE practices; FL, GA, and VA inquiry/lab-safety practices.).