1.0Resources » Surfnetkidshttps://www.surfnetkids.com/resourcesBarbara J. Feldmanhttp://www.surfnetkids.com/barbara/rich600338<blockquote class="wp-embedded-content" data-secret="Gox5m68R1N"><a href="https://www.surfnetkids.com/resources/color-vision/">Color Vision</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.surfnetkids.com/resources/color-vision/embed/#?secret=Gox5m68R1N" width="600" height="338" title="“Color Vision” — Resources » Surfnetkids" data-secret="Gox5m68R1N" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://www.surfnetkids.com/resources/wp-includes/js/wp-embed.min.js /* ]]> */ </script> https://www.surfnetkids.com/resources/wp-content/uploads/2015/03/bigstock-Beautiful-colorful-eye-close-u-65050888.jpg900637Surfnetkids recommends five color vision websites for families and classrooms. Color vision is our brain's response to light reacting with our eye's cone cells. Humans have three types of cone cells, each reactive to a different