Chemical Change

Age 10-12: Concept 3 - Change: Unit 3

Summary of Skills

• Communicate scientific concepts and explanations, based on evidence, through oral and written presentations. (Science)
• Demonstrate that some mixtures maintain the physical properties of their ingredients, such as iron filings and sand. (Science)
• Develop models to describe the atomic composition of simple molecules and extended structures. (Science)
• Differentiate between physical and chemical change. (Science)
• Distinguish between physical and chemical changes in matter in the digestive system. (Science)
• Identify an acid or a base using litmus paper. (Science)
• Identify changes that can occur in the physical properties of the ingredients of solutions such as dissolving sugar in water, dissolving salt in water, or adding lemon juice to water. (Science)
• Identify that organic compounds contain carbon and other elements such as hydrogen, oxygen, phosphorus, nitrogen, or sulfur. (Science)
• Identify the formation of compounds by using the evidence of a possible chemical change such as a change in temperature. (Science)
• Identify the formation of compounds by using the evidence of a possible chemical change such as color change. (Science)
• Identify the formation of compounds by using the evidence of a possible chemical change such as production of a gas. (Science)
• Identify the formation of compounds by using the evidence of a possible chemical change such as production of a precipitate. (Science)
• Identify the processes by which solids, liquids, and gases can change state. (Science)
• Know all matter is made of atoms, which may combine to form molecules. (Science)
• Know metals have properties in common and that some metals are pure elements; others, such as steel and brass, are composed of a combination of elemental metals. (Science)
• Know properties of solid, liquid, and gaseous substances, such as sugar (C6H12O6), water (H2O), helium (He), oxygen (O2), nitrogen (N2), and carbon dioxide (CO2). (Science)
• Know properties of solid, liquid, and gaseous substances, such as sugar, water, helium, oxygen, nitrogen, and carbon dioxide. (Science)
• Know properties of solids, liquids, and gases. (Science)
• Know scientists have developed instruments that can create discrete images of atoms and molecules that show that the atoms and molecules often occur in well-ordered arrays. (Science)
• Know that during chemical reactions, the atoms in the reactants rearrange to form products with different properties. (Science)
• Know that the differences in chemical and physical properties of substances are used to separate mixtures and identify compounds. (Science)
• Know the common properties of salts/bases, such as sodium chloride (NaCl), and acids. (Science)
• Observe and measure characteristic properties of substances that remain constant such as boiling points and melting points. (Science)
• Recognize how large molecules are broken down into smaller molecules, i.e., carbohydrates can be broken down into sugars. (Science)
• Understand how the terms atom, molecule, element, compound, mixture, and pure substance are related. (Science)
• Understand that atoms constantly move, and that how those atoms are moving determines what state a material is in. (Science)