What explains the result?
Scientific notation writes a value as a number from 1 up to (but not including) 10 multiplied by a power of ten. The exponent records how far the decimal point moves.
Lab skills / Scientific notation / Dedicated lab room
LAB SKILLS · GRADES 6–12
Write measurements in scientific notation
INVESTIGATION QUESTIONHow does notation make very large and very small measurements easier to compare?
● ILLUSTRATIVE SCIENCE MODEL
ENGLISH CAPTIONS
Move the decimal until one nonzero digit remains before it.
0.0 / 3.0 s
Where does this matter?
Scientists use powers of ten to communicate scales from cells and atoms to planets and distances in space.
What should you keep in mind?
Changing notation does not change the measured quantity. Keep significant figures and units consistent when converting.
DEDICATED PRACTICE ROOM · LAB SKILLS
Write measurements in scientific notation
YOUR TASK
How does notation make very large and very small measurements easier to compare?
READ THE BENCH CARD
Convert a measurement and preserve its scale
Enter a normalized coefficient and exponent for the same measured quantity. A moved decimal must be balanced by its power of ten. Changing notation does not change the measured quantity. Keep significant figures and units consistent when converting.
MATERIALS / DATAMeasurement cards · Place-value chart · Calculator
MEASURED QUANTITY0.00042meters
0 . 0 0 0 4 2 → 4 . 2
Keep the value equal: one nonzero digit before the decimal; use the exponent to track decimal moves.
WHAT TO TAKE AWAY
Scientific notation writes a value as a number from 1 up to (but not including) 10 multiplied by a power of ten. The exponent records how far the decimal point moves.
WHERE THIS IS USED
Scientists use powers of ten to communicate scales from cells and atoms to planets and distances in space.
MODEL LIMIT Changing notation does not change the measured quantity. Keep significant figures and units consistent when converting. The activities on this page do not store classroom measurements.
