| Keyboard Shortcut | Action |
|---|---|
| Space | Pause/Play video playback |
| Enter | Pause/Play video playback |
| m | Mute/Unmute video volume |
| Up and Down arrows | Increase and decrease volume by 10% |
| Right and Left arrows | Seek forward or backward by 5 seconds |
| 0-9 | Fast seek to x% of the video. |
| f | Enter or exit fullscreen. (Note: To exit fullscreen in flash press the Esc key. |
| c | Press c to toggle captions on or off |
Converting to Biodiesel
Connections to NRC Framework for K-12 Science Education: Science and Engineering Practices: Constructing Explanations and Designing Solutions.
Monitoring CO2 concentrations and air quality and avoiding harmful exposures are important steps people can take to safeguard public health. However, it’s also important to recognize that additional steps need to be taken to address the causes of the problem.
The following video features a type of technology designed to help reduce the impact of diesel fuel on the environment and on public health. Click on the left to watch the video. As you watch, consider the problems that technology is being designed to address. What environmental and public health benefits could be derived from using this technology?
Based on what you've seen, assess the effectiveness of this design solution.
