Chemical energy: Is stored energy in sugar molecules

Chemical energy: Is stored energy in sugar molecules • Respiration: is a chemical reaction in PLANTS and animals which allows them to grow, move and stay warm. C6H12O6 (sugar) and O2 are the reactants. CO2 and H2O are the products.

Independent variable- is the variable you have control over, what you can choose and manipulate. • Chemical Properties - the way an element or compound behaves in chemical reactions: Flammable, dissolve in water, soft, rusts, melt at room temperature, conducts electricity

Physical Properties- are used to identify, describe and classify matter, such as: Hardness, Texture, color, Odor, Taste, and Temperature • Chemical Reaction - a chemical change in which a substance is changed into a new substance

Physical change- are reversible changes and no new substances is formed • ¨Respiration = a process in which stored energy is released from food molecules. • Photosynthesis: how plants turn sunlight, water, and carbon dioxide into food and oxygen

¨Atom- the smallest component of an element having the chemical properties of the element • Molecules: When to two or more atoms have chemically combined to form a single substance.

Reactants: a substance that undergoes a change in a chemical reaction • Products: A substance that is produced in a chemical reaction.

•Hypothesis- A proposed solution to a scientific problem Inference-To make a mental judgment based on observations. Inferences cannot be directly observed. They require thought. Theory- a proposed explanation whose status is still not 100% known

¨Variable- anything that can change or be changed in an experiment • ¨Control- may be a “no treatment" or an “experimenter selected” group.

Chemical energy: Is stored energy in sugar molecules