For an
experiment.
a scientist
put lime at the base of tomato plant
A and baking soda
at the base of
tomato plant B. She then sealed the
plants in plastic bags. Tomato plant A
eventually died,
and tomato
tomato plant B
stayed healthy.
what
TU
S
the dependent variable in
this experiment?

hello

answer: collecting information/data

reason: the student is going around and asking people questions to collect data

i hope this

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.