Read the lab procedure for a controlled experiment that looks at the effect of heat on the circumference of bicycle tires.
step 1: pump up six identical bike tires to the recommended air pressure.
step 2: place three tires under heat lamps, and keep the other three tires at room temperature.
step 3: after four hours, measure the circumference of each tire.
step 4: record your results in the table.
step 5:
which step should be next in this procedure?
list the materials that are needed.
write a conclusion for the experiment.
write a hypothesis for the results.
draw a table for the observations.