Measuring and Numbers in Chemistry

Precision and Accuracy

Measuring and Numbers in Chemistry

Precision and Accuracy

Learning Target 2.3.1: I can evaluate the accuracy and precision in scientific data

Goal 2.3.1.a: I can determine if data collected is precise.

Goal 2.3.1.b: I can determine if data collected is accurate.

Goal 2.3.1.c: I can explain the difference between accuracy and precision.

Goal 2.3.1.d: I can calculate a percent error.

^[1]various glassware used in a chemistry lab

Measurements and numbers in Chemistry are very important. Read digital text about Evaluating Measurements^[2] and answer the review questions at the end of the reading.

Complete the Accuracy and Precision lab.

^[3]Three targets are shown with different

results to show precision and accuracy.

Thinkable Moment: Answer the following question in your notebook. Can you be accurate without being precise? Why or why not? Include pictures to help explain your answer and justify your position clearly. Check here for the answer.