Match the following vocabulary words. phalanges

1. knee bone or kneecap

2. bones in fingers and toes

3. inside bone in the lower

part of the arm
ulna
patella

1) knee bone or kneecap=part of arm

2) bones in finger and toes =patella

3)inside bone in the lower=ulna

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.