How would you measure the mass of the following (with what instrument and in grams or kilograms)? a. A bunch of bananas: b. Sugar for a cake recipe: c. A child visiting the clinic: d. A laptop computer:

let's tackle these questions.

2. How would you measure the mass of the following (with what instrument and in grams or kilograms)?

• a. A bunch of bananas: Spring scale, Kilograms
• b. Sugar for a cake recipe: Kitchen scale, Grams
• c. A child visiting the clinic: Bathroom scale, Kilograms
• d. A laptop computer: Spring scale, Kilograms

3. Answer the following questions.

• a. i. Is there only one type of scale?
  • No
• a. ii. Name some of the types of scales we use and what we use them for.
  • Bathroom scale for body weight, Kitchen scale for food ingredients, Balance scale for small masses, Spring scale for general objects.
• b. Will a bag full of cotton waste have a larger mass than the same size bag filled with steel nails?
  • No, the bag of steel nails will have a larger mass because steel is much denser than cotton.
• c. We use grams (g) and kilograms (kg) when measuring mass.
  • i. Which unit of measurement do you think we use to measure heavier objects?
    • Kilograms (kg)
  • ii. Which unit of measurement do you think we use for lighter objects?
    • Grams (g)

Measuring the ingredients

• My mother baked a cake. What did she use to measure the ingredients?
  • Kitchen scale