Use a tape measure and measure in metres. For greater precision, measure in centimetres.
a ruler
A protractor.
depends on what item you are measuring
A balance.
meter
thermometer
odometer
The engine dipstick is the only tool you can use to measure how much oil is in the engine.
Barometer is the tool to measure air pressure
Use a tape measure and measure in metres. For greater precision, measure in centimetres.
The best tool to use to measure distance underwater is
A ruler or tape measure.
You would use a thermometer to measure air temperature.
ruler
barometer
mg or g