Rhonda watched a video taken by a camera that was lifted into the upper atmosphere by a weather balloon. She saw the balloon pop when it reached a certain height. Afterward, Rhonda wondered what effect the air pressure at high altitudes has on the volume of gas in balloons. What scientific practice is Rhonda performing?

asking a question
providing explanations
communicating results
performing an investigationChou is curious about the effect of magnets on how plants grow. He sets up ten pots with alfalfa sprouts. He places strong magnets under five of the pots but does not put magnets under the other five pots.

This is an example of which scientific practice?

collecting data
providing explanations
communicating results
performing an investigation