Kostenlose Fotos & Bilder
von Marco Verch unter Creative Commons 2.0 Lizenz
93.439 Fotos
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Light bulb in an electric circuit in a school scientific experiment (Flip 2020)
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Two electric wires in a woman's hand close up (Flip 2020)
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White glasses to protect your eyesight during chemical experiments and analyses (Flip 2020)
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Close-up of a drop of orange solution on the tip of the pipette (Flip 2020)
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Analysis in the laboratory background (Flip 2020)
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Close-up of solution dripping from a pipette into a laboratory test tube (Flip 2020)
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The concept of studying chemistry. Test tubes and reagents on a white background (Flip 2020)
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Glass tubes with different reagents close-up (Flip 2020)
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Mixing two reagents in a test tube (Flip 2020)
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Close-up of a test tube with a solution in hand. Top view (Flip 2020)
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Laboratory test tube with orange solution in hand (Flip 2020)
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A gloved hand holds a test tube. The concept of observing a chemical reaction (Flip 2020)
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Close-up of the reaction between alkaline and acidic reagents in a test tube (Flip 2020)
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Indicator paper with alkaline testing (Flip 2020)
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Litmus paper dipped in solution (Flip 2020)
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Close-up of a indicator paper with sour testing (Flip 2020)
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Ph scale for comparing the result hydrogen index (Flip 2020)
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Determination of ph in a laboratory glass tube (Flip 2020)
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Plastic spoon with white powder. Working with reagents (Flip 2020)
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Laboratory test tubes in a wooden tripod (Flip 2020)
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Laboratory tests background. Green solution and a female hand with a pipette (Flip 2020)
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Drops of orange liquid fall into a glass laboratory tube (Flip 2020)
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Close-up of a solution in a dropper (Flip 2020)
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Chemical solutions and indicator paper. Analysis concept (Flip 2020)
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Glass test tubes close-up. The concept of research (Flip 2020)
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Laboratory concept with glass tubes (Flip 2020)
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Pardin lentils spill out of hand (Flip 2020)
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Dry seeds of pardin lentils in a wooden spoon and sprinkled on a white background (Flip 2020)
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Raw pardin lentils in a wooden spoon (Flip 2020)
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Pink maze cube on white background (Flip 2020)
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Labyrinth cube. The concept of finding the right way, solutions (Flip 2020)
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Frame of different hair combs with free space in the middle (Flip 2020)
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Hair combs and scissors. The concept of the barbershop (Flip 2020)
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Collection of black combs on white background. Top view (Flip 2020)
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Manicure scissors and tweezers on a white background (Flip 2020)
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Ice hockey sticks and puck on white background (Flip 2020)
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Pair of hockey sticks and puck on a white background (Flip 2020)
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Scattered fruit colored lollipops on a white background (Flip 2020)
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Jar of candy fruit candies close up (Flip 2020)
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Cable for charging a mobile phone on a white background (Flip 2020)
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Top view black USB hub on white background (Flip 2020)
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Close-up of black USB hub on white background (Flip 2020)
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AAA alkaline batteries on a black background (Flip 2020)
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Blue retractable leash for dog top on white background (Flip 2020)
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Blue leash for dog on white background (Flip 2020)
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Chopsticks hold a dessert roll with cheese, Apple, kiwi and banana (Flip 2020)
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Close-up of sweet rolls with fruit and chopsticks (Flip 2020)
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Set of sweet rolls with cheese and fruit on a white background with chopsticks (Flip 2020)
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Sweet rolls with cheese, fruit and mint leaves (Flip 2020)
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Multi-colored pencils in a pencil case close-up (Flip 2020)
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Open iron box with colored pencils (Flip 2020)
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