Title: Investigating Factors that Affect Photosynthesis Intended Level: Primary Subject: Science Description: This Interactive Resource illustrate, by simulating experiments, the effects of light and carbon dioxide concentration on photosynthesis. To Use: To use this Interactive Resource, click on "index.htm". Security Issues: Due to the security features of Microsoft Internet Explorer, files of of this Interactve Resource may be blocked. When this happens, you may see an Information bar that reads: "To help protect your security, Internet Explorer has restricted this file from showing active content that could access your computer. Click here for options..." To override this security feature to access this Interactive Resource, click on the Information bar and then click on " Allow Blocked Content...".