13 books • 5 series
What in the World Is a Mile? and Other Distance Measurements (Let's Measure More) (Let's Measure)
What in the World Is a Ton? and Other Weight & Volume Measurements (Sandcastle Let's Measure More) (Let's Measure)
What in the World Is a Leap Year? and Other Time Measurements (Let's Measure) (Sandcastle Let's Measure More)
What in the World Is an Acre? and Other Land & Sea Measurements (Let's Measure) (Let's Measure More)
What in the World Is a Baker's Dozen? and Other Interesting Measurements (Let's Measure) (Sandcastle Let's Measure More)
What in the World Is a Centimeter? and Other Metric Measurements (Sandcastle Let's Measure More) (Let's Measure)