Two students look together at a liquid sample.
{"Image Make": "\"Canon\"", "Image Model": "\"Canon PowerShot G12\"", "Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop CS2 Macintosh", "Image DateTime": "2015:10:20 12:29:48", "Image YCbCrPositioning": "Centered", "Image ExifOffset": "232", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "530", "Thumbnail JPEGInterchangeFormatLength": "8696", "EXIF ExposureTime": "1/250", "EXIF ExifVersion": "0230", "EXIF DateTimeOriginal": "2015:08:04 05:06:37", "EXIF DateTimeDigitized": "2015:08:04 05:06:37", "EXIF ComponentsConfiguration": "YCbCr", "EXIF ExposureBiasValue": "1/3", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "215", "EXIF ExifImageLength": "215"}