Why Controlled Experiments Are Important on Earth and in Space
Astronauts inside the Spacelab module

The information in this video was accurate as of the original publication date.

Audience: Educators and Students
Grades: 5-8


This NASA video segment explores how the human cardiovascular system is affected by microgravity. Viewers watch astronauts on board the space shuttle and learn that the cardiovascular system becomes deconditioned while in a microgravity environment. Viewers also learn how scientists study this deconditioning process and why having a controlled experiment on the ground is important. A demonstration on Earth in a high school lab reinforces the concept of controlled experiments.

Why Controlled Experiments Are Important on Earth and in Space
Duration: 3 minutes 26 seconds
> View QuickTime [11MB]


This video clip is part of the Liftoff to Learning: Assignment Spacelab DVD that may be ordered from the Central Operation of Resources for Educators, or CORE  →.


Other video learning clips in this series:
The Process of Forming a Hypothesis
Using the General Purpose Work Station (GPWS) in Space
Identifying, Labeling, and Measuring for Experiment Safety