1) Natural substances found in soil that plants absorb through their roots to stay healthy and grow. a) Minerals b) Starch c) Hazard d) Compound 2) The process plants use to make their own food using sunlight, water, and carbon dioxide. a) mixture b) Hazard c) Photosynthesis d) Stoma 3) A type of sugar made by plants during photosynthesis; it is used for energy. a) Glucose b) Repeatable c) Starch d) Guard cell 4) A substance that is made during a chemical reaction. a) Product b) Chlorophyll c) Glucose d) Xylem cell 5) A substance that starts or takes part in a chemical reaction. a) Hazard b) Diffusion c) mixture d) Reactant 6) The green pigment in plants that absorbs sunlight for photosynthesis. a) Chlorophyll b) Chloroplast c) Reliable d) Hazard 7) The part of a plant cell where photosynthesis happens. a) Chloroplast b) mixture c) Compound d) Stoma 8) The movement of particles from an area of high concentration to an area of low concentration. a) Photosynthesis b) Product c) Xylem cell d) Diffusion 9) One of a pair of cells that control the opening and closing of a stoma on a leaf. a) Hazard b) Guard cell c) Diffusion d) Carbohydrate 10) Tiny openings on leaves that allow gases (like oxygen and carbon dioxide) to move in and out. a) Stoma b) Diffusion c) Anomalous d) Photosynthesis 11) A cell in plants that transports water and minerals from the roots to the leaves. a) Chloroplast b) mixture c) Minerals d) Xylem cell 12) The process of releasing energy from glucose using oxygen. a) Chloroplast b) Repeatable c) Risk d) Aerobic respiration 13) A type of nutrient made of carbon, hydrogen, and oxygen; includes sugars and starches. a) Reliable b) Starch c) Carbohydrate d) Glucose 14) A substance made of two or more different elements chemically joined together. a) Chloroplast b) Element c) Compound d) Anomalous 15) Two or more substances combined but not chemically joined (they can be separated). a) mixture b) Glucose c) Aerobic respiration d) Reactant 16) A pure substance made of only one type of atom. a) Element b) Diffusion c) Aerobic respiration d) Carbohydrate 17) A carbohydrate stored in plants; made of many glucose molecules joined together. a) Photosynthesis b) Chlorophyll c) Starch d) Element 18) Something that has the potential to cause harm. a) Minerals b) Product c) Hazard d) Chloroplast 19) The chance that a hazard will actually cause harm. a) Chlorophyll b) Stoma c) Risk d) Compound 20) A result that does not fit the pattern or is unexpected. a) Chloroplast b) Diffusion c) Anomalous d) Reliable 21) Something that gives consistent results every time. a) mixture b) Chloroplast c) Reliable d) Diffusion 22) When the same person can repeat an experiment and get the same results. a) Repeatable b) Aerobic respiration c) Element d) Hazard

ESAL Science Topic 1

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