A student investigation has these main parts, the investigation contents:

• Introduction - states the discovery question and outlines objectives
  
• Thinking About the Question - provides information about the science addressed
  
• Materials - lists the probes and supplies needed
  
• Safety - lists warnings and cautions concerning the investigation
  
• Trials - provides general guidelines that indicate how to carry out the investigation
  
• Technical Hints - specifies helpful hints while using the technology
  
• Analysis - provides possible graphs and calculations that can help you interpret data
  
• Further Investigation - provides suggestions for additional, deeper investigations
  

At the bottom of each investigation page, there are three buttons:

• back or next - use these to page through the investigation
• investigation contents - return to the investigations's main parts

To choose a new student investigation, click on the green investigation button at the top of all pages.

Compressed Files

Some activities have materials which are linked from the Web site in a compressed or "stuffed" format. These files, available for Macintosh operating system only, may have an filename extension of "sit.hqx" which require a program like StuffIt Expander to decompress them once you have downloaded the file to your computer.