Accuracy and Precision in Science
A Grade 7 science worksheet exploring the concepts of accuracy and precision in measurements through definitions, examples, and critical thinking questions.
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Accuracy and Precision in Science
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Read each question carefully and answer to the best of your ability. For multiple-choice questions, circle the letter next to the correct answer. For fill-in-the-blank and short-answer questions, write your answers in the space provided.
In science, accuracy and precision are two important concepts related to measurements. While they might sound similar, they describe different aspects of data quality.
1. refers to how close a measurement is to the true or accepted value.
2. refers to how close repeated measurements are to each other.
3. A scientist measures the mass of a known 10-gram weight three times and gets results of 9.9g, 10.1g, and 10.0g. These measurements are:
Accurate but not precise
Precise but not accurate
Both accurate and precise
Neither accurate nor precise
4. Imagine you are playing darts. Describe a scenario where your throws would be precise but not accurate. You may refer to the image below.
5. A faulty measuring tool can lead to precise but inaccurate measurements.
True
False