Tools and Units of Measurement

Which tool would you use to measure the length of your book?

• A balance

• A stop watch

• A ruler

Which unit would you use to measure the mass of your eraser?

• Kilogram

• Gram

• Centimeter

What is the mass shown on these scales?

• 7 kg and 50g

• 7kg and 100g

• 7kg and 500g

The base unit of time

• hour

• Second

• meter

A unit for temperature

• Celsius

• Meter

• Centimeter

What is the temperature today ?

• 15° Fahrenheit

• 15° Celsius

• 45° Celsius