page_title: Sidewalk chalk
hierarchical_section_title: Sidewalk chalk
caption_attribution_description: English: Street artist (chalks) in Florence, Italy
context_page_description: Sidewalk chalk is typically large and thick sticks of chalk that come in multiple colors and are mostly used for drawing on pavement or concrete sidewalks. It is also used to draw a four square court or a hopscotch board. Blackboard chalk, typically used in educational settings, is shorter and thinner than sidewalk chalk.
  There are several different types of sidewalk chalk, typically coming in solid-colored sticks. 3-D sidewalk chalk sets, in which each stick of chalk is created with two particular colors that appear 3-dimensional when viewed through the 3-D glasses that come with the chalk, also exist.
  Sidewalk chalk can be cheaply homemade.
context_section_description: Sidewalk chalk is typically large and thick sticks of chalk (calcium sulfate (gypsum) rather than calcium carbonate (rock chalk)) that come in multiple colors and are mostly used for drawing on pavement or concrete sidewalks. It is also used to draw a four square court or a hopscotch board. Blackboard chalk, typically used in educational settings, is shorter and thinner than sidewalk chalk.
  There are several different types of sidewalk chalk, typically coming in solid-colored sticks. 3-D sidewalk chalk sets, in which each stick of chalk is created with two particular colors that appear 3-dimensional when viewed through the 3-D glasses that come with the chalk, also exist.
  Sidewalk chalk can be cheaply homemade.
caption: Chalk artist in Florence, Italy
exif: {"Image Make": "NIKON CORPORATION", "Image Model": "NIKON D800", "Image Orientation": "Horizontal (normal)", "Image XResolution": "300", "Image YResolution": "300", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop CC 2017 (Windows)", "Image DateTime": "2017:05:29 21:35:14", "Image ExifOffset": "224", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "1030", "Thumbnail JPEGInterchangeFormatLength": "5350", "EXIF ExposureTime": "1/50", "EXIF FNumber": "13", "EXIF ExposureProgram": "Aperture Priority", "EXIF ISOSpeedRatings": "400", "EXIF SensitivityType": "Recommended Exposure Index", "EXIF ExifVersion": "0221", "EXIF DateTimeOriginal": "2017:05:19 10:07:17", "EXIF DateTimeDigitized": "2017:05:19 10:07:17", "EXIF ShutterSpeedValue": "352741/62500", "EXIF ApertureValue": "7400879/1000000", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "4", "EXIF MeteringMode": "Pattern", "EXIF LightSource": "Unknown", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "78", "EXIF SubSecTime": "70", "EXIF SubSecTimeOriginal": "70", "EXIF SubSecTimeDigitized": "70", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "1800", "EXIF ExifImageLength": "2700", "EXIF FocalPlaneXResolution": "16780511/8192", "EXIF FocalPlaneYResolution": "16780511/8192", "EXIF FocalPlaneResolutionUnit": "3", "EXIF SensingMethod": "One-chip color area", "EXIF FileSource": "Digital Camera", "EXIF SceneType": "Directly Photographed", "EXIF CVAPattern": "[2, 0, 2, 0, 0, 1, 1, 2]", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF DigitalZoomRatio": "1", "EXIF FocalLengthIn35mmFilm": "78", "EXIF SceneCaptureType": "Standard", "EXIF GainControl": "Low gain up", "EXIF Contrast": "Normal", "EXIF Saturation": "Normal", "EXIF Sharpness": "Normal", "EXIF SubjectDistanceRange": "0", "EXIF BodySerialNumber": "5000325", "EXIF LensSpecification": "[24, 120, 4, 4]", "EXIF LensModel": "24.0-120.0 mm f/4.0"}