Lab Safety/Tools/Accuracy/Precision -Cleghorn

It is a measure of how close measurements come to each other when they are made in the same way

• Accuracy
• Precision
• Error
• Extrapolation

How close a measurement is to the accepted value is called..

• Accuracy

• Precision

• Significant

• Estimate

This bullseye demonstrates...

• High Accuracy & High Precision
• High Accuracy & Low Precision
• Low Accuracy & High Precision
• Low Accuracy & Low Precision

?

• High Accuracy & High Precision
• High Accuracy & Low Precision
• Low Accuracy & High Precision
• Low Accuracy & Low Precision

Tags

NGSS.MS-PS3-1

Describe the accuracy and precision of the image

• Accurate and Precise
• Accurate and not precise
• Not Accurate and Precise
• not accurate and not precise

How close a measurement is to the true value is called..

• Accuracy

• Precision

• Significant

• Estimate

This image is an example of...

• precision ONLY
• accuracy ONLY
• BOTH precision and accuracy
• NEITHER precision and accuracy 

Tags

NGSS.MS-PS3-1

You cut your finger during a lab experiment. The first course of action is to...

• Visit the school nurse after class

• Tell the teacher at once

• See a doctor after school

• Apply first aid yourself

During a lab experiment, which should NOT be worn?

• Loose or bulky clothing

• Dangling jewelry

• Sandals

• None of these should be worn

Long hair in the lab must be...

• Cut shorter

• Neatly groomed

• Held away from the experiment with your free hand

• Tied back to be kept out of the way