Meters are helpful for measuring the height of a building, but centimeters are better for measuring...

• a book.
• a mountain.
• bacteria.

Kilograms are helpful for measuring the mass of a human, but grams are better for measuring...

• a dust speck.
• a whale.
• the amount of salt in a recipe.

Liters are helpful for measuring beverages, but milliliters are better for measuring...

• the Atlantic Ocean.
• a tank of gasoline.
• a dose of cough syrup.