Matching Pairs Basic Quantities and SI units (Simple)Online version Match the basic quantities to their SI units by clicking on the quantity on the left then selecting the matching quantity on the right. by Camesha Browne 1 Mass, m 2 Temperature, T 3 Current, I 4 Length, l 5 Time, t seconds, s Kelvin, K Ampere, A Kilogram, kg metre, m