Approximate Values Various tables in the text show approximate values for length mass and time Note the wide range of values a Lengths - Table 1.1 Masses -Table 1.2 Time intervals Table 13Approximate Values ◼ Various tables in the text show approximate values for length, mass, and time ◼ Note the wide range of values ◼ Lengths – Table 1.1 ◼ Masses – Table 1.2 ◼ Time intervals – Table 1.3