PhotosVectorsIllustrationsFree PicturesVideosMusic & SFXAI Image GeneratorFree Background RemoverFree Video Background RemoverFree Image UpscalerReverse Image Search
Enterprise
Pricing
Log InSign Up

Theory Stock Photos

100,000 Theory stock images

Vectors theory
chalkboard background
blackboard
background
chalkboard
math
quantum physics
science
texture
education
mathematics
black board
school background
blackboard background
background texture
algebra profesor
physics
black background
quantum
  • Best Match
  • Fresh
  • Popular
13,261-13,360 of 100,000
Abstract blurred grainy gradient background texture. Colorful digital grain soft noise effect pattern. Lo-fi multicolor vintage retro. VHS Glitch Texture
Abstract Blurred Grainy Gradient Background Texture Colorful Digital Grain Soft — Stock Photo, Image
Abstract Texture Background , Pattern Backdrop of Gradient Wallpaper
Abstract Texture Background Pattern Backdrop Gradient Wallpaper — Stock Photo, Image
Abstract luxury blur dark grey and black gradient, used as background studio wall for display your products.
Abstract luxury blur dark grey and black gradient, used as background studio wall for display your products. — Stock Photo, Image
Abstract colorful creative digital pattern background
Abstract Colorful Creative Digital Pattern Background — Stock Photo, Image
Glossy vibrant and colorful wallpaper. Light explosion star with glowing particles and lines. Beautiful abstract rays background.
Glossy Vibrant Colorful Wallpaper Light Explosion Star Glowing Particles Lines — Stock Photo, Image
Abstract pastel soft colorful smooth blurred textured background off focus toned in blue color. Can be used as a wallpaper or for web design
Abstract Pastel Soft Colorful Smooth Blurred Textured Background Focus Toned — Stock Photo, Image
Air bubbles underwater, water bubbles. Computer generated loop-able underwater bubbles background.
Air Bubbles Underwater Water Bubbles Computer Generated Loop Able Underwater — Stock Photo, Image
Abstract pastel soft colorful textured background toned
Abstract pastel soft colorful textured background toned — Stock Photo, Image
Fantasy chaotic colorful fractal pattern. Abstract fractal shapes. 3D rendering illustration background or wallpaper.
Fantasy Chaotic Colorful Fractal Pattern Abstract Fractal Shapes Rendering Illustration — Stock Photo, Image
Abstract continuous drawing line arrow as sign of direction on white background
Abstract Continuous Drawing Line Arrow Sign Direction White Background — Stock Vector
Doodle and hand drawn arrow icons set
Doodle Hand Drawn Arrow Icons Set — Stock Vector
Bussiness chart doodle drawing
Bussiness chart doodle drawing — Stock Vector
Old color grunge vintage weathered background abstract antique texture with retro pattern
Old Color Grunge Vintage Weathered Background Abstract Antique Texture Retro — Stock Photo, Image
Green background. Abstract light green metal gradient. Shiny green blur texture background. Geometric texture wall with light reflections. Dark green wallpaper. 3D Vector illustration.
Green Background Abstract Light Green Metal Gradient Shiny Green Blur — Stock Vector
Seamless pattern with geometric shapes, vector illustration
Seamless Pattern Geometric Shapes Vector Illustration — Stock Vector
Gradient defocused abstract photo smooth color background
Gradient Defocused Abstract Photo Smooth Color Background — Stock Photo, Image
Saturated brown background, abstract bright beige illustration
Saturated Brown Background Abstract Bright Beige Illustration — Stock Photo, Image
Abstract digital background. Data flow information. Concept of digital communication. Big data visualization. 3D.
Abstract Digital Background Data Flow Information Concept Digital Communication Big — Stock Photo, Image
Abstract pastel soft colorful smooth blurred textured background off focus toned in yellow color
Abstract Pastel Soft Colorful Smooth Blurred Textured Background Focus Toned — Stock Photo, Image
Abstract pastel soft colorful smooth blurred textured background off focus toned. Use as wallpaper or for web design
Abstract Pastel Soft Colorful Smooth Blurred Textured Background Focus Toned — Stock Photo, Image
Abstract digital wallpaper, vector background
Abstract Digital Wallpaper Vector Background — Stock Vector
Old color grunge vintage weathered background abstract antique texture with retro pattern
Old Color Grunge Vintage Weathered Background Abstract Antique Texture Retro — Stock Photo, Image
Pull Right Vector Flat Icon Set
Pull Right Vector Flat Icon Set — Stock Vector
Retro Abstract Geometric Background
Retro Abstract Geometric Background — Stock Photo, Image
Doodle and hand drawn arrow icons set
Doodle Hand Drawn Arrow Icons Set — Stock Vector
Arrow Down up left right direction vector rounded icon. Image style is a flat icon symbol inside a circle, black color, white background.
Arrow Down up left right direction vector rounded icon. Image style is a flat icon symbol inside a circle, black color, white background. — Stock Vector
Texture normal map concrete, normal mapping
Texture Normal Map Concrete Normal Mapping — Stock Photo, Image
Abstract pastel soft colorful smooth blurred textured background off focus toned. Use as wallpaper or for web design
Abstract Pastel Soft Colorful Smooth Blurred Textured Background Focus Toned — Stock Photo, Image
Blur background texture theme
Blur Background Texture Theme — Stock Photo, Image
Rectangular colored plate texture with rivets
Rectangular colored plate texture with rivets — Stock Photo, Image
Compass icon vector illustration. arrow compass icon sign and symbol
Compass Icon Vector Illustration Arrow Compass Icon Sign Symbol — Stock Vector
Abstract colorful pattern for background, creative and design art texture
Abstract Colorful Pattern Background Creative Design Art Texture — Stock Photo, Image
Shot of real dust particles floating in the air in purple
Shot Real Dust Particles Floating Air Purple — Stock Photo, Image
Set of Hand drawn vector arrows doodle on white background.design element vector illustration.
Set Hand Drawn Vector Arrows Doodle White Background Design Element — Stock Vector
Red neon stripes. Red neon lights on dark blue background with lights on the edges. Add your own text or message between the stripes. 3D illustration.
Red Neon Stripes Red Neon Lights Dark Blue Background Lights — Stock Photo, Image
Abstract Smooth Brown wall background layout design,studio,room,web template,Business report with smooth circle gradient color
Abstract Smooth Brown wall background layout design,studio,room,web template,Business report with smooth circle gradient color — Stock Photo, Image
Check list vector icon. Hand drawn task list with check marks and check boxes .
Check list vector icon. Hand drawn task list with check marks and check boxes . — Stock Vector
Abstract pastel soft colorful textured background toned
Abstract pastel soft colorful textured background toned — Stock Photo, Image
Circle area line icon. Continuous one line with curl. Territory dimension sign. Round lap measurement symbol. Circle area single outline ribbon. Loop curve pattern. Vector
Circle Area Line Icon Continuous One Line Curl Territory Dimension — Stock Vector
Curve Arrows Grunge Icon
Curve Arrows Grunge Icon — Stock Vector
Old color grunge vintage weathered background abstract antique texture with retro pattern
Old Color Grunge Vintage Weathered Background Abstract Antique Texture Retro — Stock Photo, Image
Light Red, Yellow vector background with rectangles.
Light Red Yellow Vector Background Rectangles — Stock Vector
Abstract illustration of red through the tiny glass background.
Abstract Illustration Red Tiny Glass Background — Stock Photo, Image
Gradient colorful blurred background
Gradient Colorful Blurred Background — Stock Photo, Image
Beautiful and bright blurred background. Defocused image. Soft drawing of a portrait lens. Attractive bokeh
Beautiful Bright Blurred Background Defocused Image Soft Drawing Portrait Lens — Stock Photo, Image
Starry night sky as a background. Dark interstellar space.
Starry Night Sky Background Dark Interstellar Space — Stock Photo, Image
Abstract pastel soft colorful smooth blurred textured background off focus toned. Use as wallpaper or for web design
Abstract Pastel Soft Colorful Smooth Blurred Textured Background Focus Toned — Stock Photo, Image
Red neon stripes. Red neon lights on dark blue background with lights on the edges. Add your own text or message between the stripes. 3D illustration.
Red Neon Stripes Red Neon Lights Dark Blue Background Lights — Stock Photo, Image
3d cube icons set. Cube or square illustration symbol. Geometric figure sign vector.
Cube Icons Set Cube Square Illustration Symbol Geometric Figure Sign — Stock Vector
Crosshairs Flat Icon Set Isolated On White Background
Crosshairs Flat Icon Set Isolated White Background — Stock Vector
Abstract futuristic fractal background
Abstract futuristic fractal background — Stock Photo, Image
Doodle arrows set or collection. Hand-drawn shapes, directions signs or symbols. Ink arrows vector. Doodle symbols. Pointer icons. Pointer graphic symbols. Vector illustration
Doodle Arrows Set Collection Hand Drawn Shapes Directions Signs Symbols — Stock Vector
Artistic abstract background. Texture painted wallpaper. Creative illustration with strokes of paint. Brush pattern painting.
Artistic Abstract Background Texture Painted Wallpaper Creative Illustration Strokes Paint — Stock Photo, Image
Abstract pastel soft colorful smooth blurred textured background off focus toned. Use as wallpaper or for web design
Abstract Pastel Soft Colorful Smooth Blurred Textured Background Focus Toned — Stock Photo, Image
Abstract pastel soft colorful smooth blurred textured background off focus toned. Use as wallpaper or for web design
Abstract Pastel Soft Colorful Smooth Blurred Textured Background Focus Toned — Stock Photo, Image
Motion conceptual wallpaper. Graphic digital illustration. Glowing neon rotating lights. Glossy presentation design template. Abstract Background. Spinning rays of light.
Motion Conceptual Wallpaper Graphic Digital Illustration Glowing Neon Rotating Lights — Stock Photo, Image
Fantasy chaotic colorful fractal pattern. Abstract fractal shapes. 3D rendering illustration background or wallpaper.
Fantasy Chaotic Colorful Fractal Pattern Abstract Fractal Shapes Rendering Illustration — Stock Photo, Image
Old color grunge vintage weathered background abstract antique t
Old color grunge vintage weathered background abstract antique t — Stock Photo, Image
Abstract pastel soft colorful smooth blurred textured background off focus toned. Use as wallpaper or for web design
Abstract Pastel Soft Colorful Smooth Blurred Textured Background Focus Toned — Stock Photo, Image
Trendy geometric abstract background in minimalistic flat style with dynamic composition. Graphic Design wallpaper.
Trendy Geometric Abstract Background Minimalistic Flat Style Dynamic Composition Graphic — Stock Photo, Image
Illustration of orthokeratology and vision correction lenses (before fitting) - Translation: lens, lens, retina, cornea
Illustration Orthokeratology Vision Correction Lenses Fitting Translation Lens Lens Retina — Stock Vector
Ink doodle arrow set vector illustration sketch hand drawn with black lines isolated on white background
Ink doodle arrow set vector illustration sketch hand drawn with black lines isolated on white background — Stock Vector
Abstract modern backdrop with blurred effects. Vector illustration background design.
Abstract Modern Backdrop Blurred Effects Vector Illustration Background Design — Stock Vector
Abstract grunge background with space for text
Abstract Grunge Background Space Text — Stock Photo, Image
Abstract pastel soft colorful textured background toned
Abstract pastel soft colorful textured background toned — Stock Photo, Image
Camera shooting modes letters in circle. Vector illustration isolated on white
Camera shooting modes letters in circle. Vector illustration isolated on white — Stock Vector
Abstract kaleidoscope fabric seamless background
Abstract Kaleidoscope Fabric Seamless Background — Stock Photo, Image
Radial, radiating arrows, pointers in opposite direction for mix, diverge concepts
Radial Radiating Arrows Pointers Direction Mix Diverge Concepts — Stock Vector
Abstract pastel soft colorful smooth blurred textured background off focus toned. Use as wallpaper or for web design
Abstract Pastel Soft Colorful Smooth Blurred Textured Background Focus Toned — Stock Photo, Image
Hand drawn line art doodle style vector arrow collection vector
Hand Drawn Line Art Doodle Style Vector Arrow Collection Vector — Stock Vector
Scenic abstract galaxy space background
Scenic Abstract Galaxy Space Background — Stock Photo, Image
Hand drawn mouse cursors icons pointers arrow hourglass. Click, press and touch actions Vector Illustration
Hand drawn mouse cursors icons pointers arrow hourglass. Click, press and touch actions Vector Illustration — Stock Vector
Abstract Glowing Colorful Blur Gradient Background Effect in Illustration Texture Design. Multicolor Texture Design for Brochure, Greeting Card, Easter, Christmas, Advertising Banner Etc.
Abstract Glowing Colorful Blur Gradient Background Effect Illustration Texture Design — Stock Photo, Image
Abstract digital painting texture. plugin art.fractal texture
Abstract Digital Painting Texture Plugin Art Fractal Texture — Stock Photo, Image
High quality black and white infrared background grunge texture
High Quality Black White Infrared Background Grunge Texture — Stock Photo, Image
The blue background with a white gradient is perfect for those of you who are looking for a background
Blue Background White Gradient Perfect Those You Who Looking Background — Stock Photo, Image
Pixel Vector Collapse Arrows Icons
Pixel Vector Collapse Arrows Icons — Stock Vector
Color grunge texture
Color grunge texture — Stock Photo, Image
Dark Orange vector texture with colored lines.
Dark Orange vector texture with colored lines. — Stock Vector
Abstract Bokeh background color
Abstract Bokeh Background Color — Stock Photo, Image
Abstract colored lines background and blurred image
Abstract Colored Lines Background Blurred Image — Stock Photo, Image
Fractal pretty background. Cool design with colorful shapes and lines. Abstract artistic wallpaper. Hipster graphic image with interesting pattern.
Fractal Pretty Background Cool Design Colorful Shapes Lines Abstract Artistic — Stock Photo, Image
Brushed Painted Abstract Background. Brush stroked painting. Artistic vibrant and colorful wallpaper.
Brushed Painted Abstract Background Brush Stroked Painting Artistic Vibrant Colorful — Stock Photo, Image
Old color grunge vintage weathered background abstract antique texture with retro pattern
Old Color Grunge Vintage Weathered Background Abstract Antique Texture Retro — Stock Photo, Image
Abstract Colorful Background Design. Pattern Background Design
Abstract Colorful Background Design Pattern Background Design — Stock Photo, Image
Abstract pastel soft colorful textured background toned
Abstract pastel soft colorful textured background toned — Stock Photo, Image
Beige and orange abstract glass texture background, design pattern template
Beige and orange abstract glass texture background, design pattern template — Stock Photo, Image
Abstract Ink Blot. Grunge Black Brush Sample. Dark Paint Stroke Texture Isolated On White. Overlay Element
Abstract Ink Blot Grunge Black Brush Sample Dark Paint Stroke — Stock Photo, Image
Light Pink, Green vector background with abstract shapes. Simple colorful illustration with abstract gradient shapes. Elegant design for wallpapers.
Light Pink Green Vector Background Abstract Shapes Simple Colorful Illustration — Stock Vector
Colorful Hand drawn cute Various appearance arrows
Colorful Hand drawn cute Various appearance arrows — Stock Vector
Abstract background trendy illustration of pastel shade
Abstract Background Trendy Illustration Pastel Shade — Stock Photo, Image
Brushed Painted Abstract Background. Wild chaotic brushstrokes. Strokes of paint. 2D Illustration. Brush stroked painting.
Brushed Painted Abstract Background Wild Chaotic Brushstrokes Strokes Paint Illustration — Stock Photo, Image
Dark Red vector background with galaxy stars.
Dark Red vector background with galaxy stars. — Stock Vector
Download icon set for web and mobile app. Download sign and symbol
Download Icon Set Web Mobile App Download Sign Symbol — Stock Vector
Calculation icon. Mathematical symbol modern, simple, vector, icon for website design, mobile app, ui. Vector Illustration
Calculation Icon Mathematical Symbol Modern Simple Vector Icon Website Design — Stock Vector
Black Ink Hand Drawing of Set of Arrows
Black Ink Hand Drawing of Set of Arrows — Stock Photo, Image
Fantasy chaotic colorful fractal pattern. Abstract fractal shapes. 3D rendering illustration background or wallpaper.
Fantasy Chaotic Colorful Fractal Pattern Abstract Fractal Shapes Rendering Illustration — Stock Photo, Image
High quality black and white infrared background grunge texture
High Quality Black White Infrared Background Grunge Texture — Stock Photo, Image
Abstract graphic pattern, seamless background
Abstract Graphic Pattern Seamless Background — Stock Photo, Image
Push Directions Vector Flat Icon Set
Push Directions Vector Flat Icon Set — Stock Vector

Related searches