Choosing and writing units in science
Grade 6 Science Worksheet - Challenge Me

Circle the best answer.
Ari labels a bag of soil for the school garden. Which label follows NIST's rules for writing units?
- 25kg
- 25 kgs
- 25 kg
- 25 Kg
Bo's paper airplane stays up for three and a half seconds. Which way of writing the time follows NIST's rules?
- 3.5s.
- 3.5 S
- 3.5 s
- 3.5 sec
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Desk measurements, model data
thing measured value pencil length 18 m book mass 900 g water bottle 500 mL walk to school 12 min One value in Jun's table has the wrong unit. Which one?
- Water bottle: 500 mL
- Pencil length: 18 m
- Book mass: 900 g
- Walk to school: 12 min
Pet and home measurements, model data
thing measured value door height 2 m cat mass 4 g juice box 200 mL recess 15 min One value in Kira's pet-and-home table has the wrong unit. Which one?
- Juice box: 200 mL
- Recess: 15 min
- Cat mass: 4 g
- Door height: 2 m
Weekend measurements, model data
thing measured value hallway length 40 m apple mass 150 g bike ride to the park 3 cm bathtub water 150 L One value in Luz's weekend table has the wrong unit. Which one?
- Apple mass: 150 g
- Hallway length: 40 m
- Bathtub water: 150 L
- Bike ride to the park: 3 cm
A toy car rolls 3 m in 2 s. Milo divides the distance by the time. Which unit fits the car's speed?
- s/m
- m
- m/s
- m/s²
A sled's speed grows by 2 m/s every second. Which unit fits that change in speed, Noah?
- m/s²
- m/s
- km/h
- m·s
A snail glides 12 cm in 4 min, in no hurry at all. Which unit fits its speed, Pia?
- cm/min
- min/cm
- cm
- cm·min
NIST lists the Sun's surface at about 5,600 °C and 10,100 °F. Why are the two numbers different, Tala?
- They are one temperature on two scales
- The Sun has two different surfaces
- One number is a mistake
- °F is a hotter kind of degree
A pool thermometer reads 28, with no scale printed. For a pool that feels warm, which scale makes sense, Zee?
- Either: 28 is warm on both scales
- °F: 28 °F is warm water
- °C: 28 °C is warm water
- K: 28 K is warm water