-s-Naklejki Vector colorful illustration of school chalkboard with welcome inscription and kids drawings isolated from white background. Green school board with books and funny elements#F214766438
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-s-Naklejki Back to school banner on green board background. Shopping sale, promo poster, card, wallpaper, flyer, discount, shop, market, special offer. Ad concept. Vector illustration#F280076454
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-s-Naklejki Covalent bond of the hydrogen molecule. Two hydrogen atoms and hydrogen molecule. Vector illustration isolated on white background.#F617481266
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-s-Naklejki Working principle of heat engine. Carnot theorem. Physics resources for teachers and students.#F619610748
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-s-Naklejki School desk with the message in a speech cloud. Back to school#F44148016
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-s-Naklejki Working principle of heat engine. Carnot theorem. Physics resources for teachers and students.#F619610734
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-s-Naklejki The four coordinate plane quadrants in geometry. Vector illustration isolated on white background.#F617419133
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-s-Naklejki Probability line. Impossible Unlikely Even Likely Certain. Mathematics resources for teachers and students.#F619610745
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-s-Naklejki Chemical structure of DNA nucleotide. Three parts of a nucleotide. Phosphate group, pentose sugar and nitrogenous base. Nucleic acids. Chemistry resources for teachers and students.#F617482944
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-s-Naklejki Vector illustration of types of angles on a school blackboard. Types of angles on blackboard written in chalk. School blackboard illustration, education.#F627767317
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-s-Naklejki Chemical structure of Oxalic acid (H2C2O4). Chemical resources for teachers and students. Chemistry resources for teachers and students.#F619620737
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-s-Naklejki Dot and cross diagrams for simple covalent molecules. Hydrogen (H2), oxygen (O2), nitrogen (N2), chlorine (Cl2), water (H2O) and methane (CH4). Physics resources for teachers and students#F617481283
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-s-Naklejki Coulomb’s law for electrostatic force between two point charges and Newton’s law for gravitational force between two stationary point masses. Physics resources for teachers and students.#F619609462
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-s-Naklejki Null set in mathematics. Empty set or null set or slashed zero icon symbol in mathematics.#F619621572
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