Grade 6 · Science

6th grade Choosing and writing units in science worksheet

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Choosing and writing units in science

Grade 6 Science Worksheet - Challenge Me

NameDate

Circle the best answer.

1.
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.
2.
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
Read this first
Desk measurements, model data
thing measured value
pencil length 18 m
book mass 900 g
water bottle 500 mL
walk to school 12 min
3.
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
4.
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
5.
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
6.
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
7.
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
8.
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
9.
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
10.
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

thing measured	value
pencil length	18 m
book mass	900 g
water bottle	500 mL
walk to school	12 min

thing measured	value
hallway length	40 m
apple mass	150 g
bike ride to the park	3 cm
bathtub water	150 L

6th grade Choosing and writing units in science worksheet – printable — Print: 1 2 3 4 5 6

About this worksheet

Choosing and writing units in science. Every version has 10 questions, and the answer key prints on the second page.

What your child will learn

I can pick a sensible unit for a length, mass, volume, time, speed or temperature, in metric and customary units.
I can match SI symbols to their quantities: m, kg, s, L, °C, m/s, m/s², N, J, V and A.
I can write a measurement the SI way (a space, the exact symbol, no plural s, no period) and spot a value with the wrong unit.

Standard: practices (no PE code)

Words to know

quantity: What is measured: length, mass, time, volume, temperature

unit: The amount we count in, such as a meter or a second

symbol: The short way to write a unit, such as m or kg

SI: The International System of Units, the metric system scientists use

customary units: US units such as inches, pounds and gallons

Common mistakes

Your child chose the right unit but wrote its symbol the wrong way. SI symbols have one form: a space before, exact capitals, no plural s, no period. Try fixing a few labels together, like 25 kg.

Your child used a unit for a different quantity, such as liters for a mass. Each quantity has its own unit. Try naming what is measured first, then the unit.

Your child chose a unit for the right quantity but far too big or too small. Try picturing the number with the unit: 18 cm is a pencil; 18 m is a bus or more.

Questions parents ask

What is the most common mistake with choosing and writing units in science?

Your child chose the right unit but wrote its symbol the wrong way. SI symbols have one form: a space before, exact capitals, no plural s, no period. Try fixing a few labels together, like 25 kg.

Are these 6th grade science worksheets free to print?

Yes. All 6 printable versions at each level are free to print, with the answer key, and no account is needed.

More grade 6 science

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