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  2. Science - Wikipedia

    en.wikipedia.org/wiki/Science

    Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the universe. [1] [2] Modern science is typically divided into two or three major branches: [3] the natural sciences (e.g., physics, chemistry, and biology), which study the physical world; and the behavioural sciences (e.g., economics, psychology, and sociology ...

  3. Make the Grade - Wikipedia

    en.wikipedia.org/wiki/Make_the_Grade

    Seven grade levels, covering elementary school and grades 7 through 12, ran along the top of the board, while seven categories ran down the left edge. The contestants' goal was to answer enough questions to light every category and grade level on the desk. In the first season, each episode had a different set of seven categories.

  4. Reading comprehension - Wikipedia

    en.wikipedia.org/wiki/Reading_comprehension

    follow the organization of a passage and to identify antecedents and references in it, draw inferences from a passage about its contents, identify the main thought of a passage, ask questions about the text, answer questions asked in a passage, visualize the text, recall prior knowledge connected to text, recognize confusion or attention problems,

  5. Solution (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Solution_(chemistry)

    Making a saline water solution by dissolving table salt in water.The salt is the solute and the water the solvent. In chemistry, a solution is defined by IUPAC as "A liquid or solid phase containing more than one substance, when for convenience one (or more) substance, which is called the solvent, is treated differently from the other substances, which are called solutes.

  6. TOEIC - Wikipedia

    en.wikipedia.org/wiki/TOEIC

    New question type to test the understanding of three related passages Text messages, instant messages, or online chat conversations with multiple speakers Despite these changes, the update to the test came with no change to score scale, test difficulty, number of items, or test length, according to ETS.

  7. Iron deficiency - Wikipedia

    en.wikipedia.org/wiki/Iron_deficiency

    Iron deficiency, or sideropenia, is the state in which a body lacks enough iron to supply its needs. Iron is present in all cells in the human body and has several vital functions, such as carrying oxygen to the tissues from the lungs as a key component of the hemoglobin protein, acting as a transport medium for electrons within the cells in the form of cytochromes, and facilitating oxygen ...

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