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

Circle the best answer.
Bo's paper airplane stays up for three and a half seconds. Which way of writing the time follows NIST's rules?
- 3.5 S
- 3.5 s
- 3.5 sec
- 3.5s.
A juice bottle holds one and a half liters. Which label follows NIST's rules, Esme?
- 1.5 L
- 1.5 ltr
- 1.5 Ls
- 1.5L
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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?
- Book mass: 900 g
- Water bottle: 500 mL
- Pencil length: 18 m
- Walk to school: 12 min
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
- Bathtub water: 150 L
- Hallway length: 40 m
- 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?
- m/s
- s/m
- m
- m/s²
A sled's speed grows by 2 m/s every second. Which unit fits that change in speed, Noah?
- m/s
- m·s
- m/s²
- km/h
A snail glides 12 cm in 4 min, in no hurry at all. Which unit fits its speed, Pia?
- cm
- min/cm
- cm/min
- cm·min
Ren's friend says 30 °C is freezing weather. Agree or disagree?
- Disagree: 30 °C is a hot day
- Disagree: 30 °C is room temperature
- Agree: 30 is near 32, the freezing point
- Agree: water freezes near 30 °C
NIST lists the Sun's surface at about 5,600 °C and 10,100 °F. Why are the two numbers different, Tala?
- °F is a hotter kind of degree
- They are one temperature on two scales
- One number is a mistake
- The Sun has two different surfaces
A pool thermometer reads 28, with no scale printed. For a pool that feels warm, which scale makes sense, Zee?
- °F: 28 °F is warm water
- Either: 28 is warm on both scales
- K: 28 K is warm water
- °C: 28 °C is warm water