Grades K-4 National Science Standards- Science as Inquiry: I- Form questions about objects, organisms, and events in the environment- Conduct investigations- Physical Science: II- Objects have many observable properties, including size, weight, shape, color, temperature, and the ability to react with other substances.- Materials can exist in different states--solid, liquid, and gas. Some common materials can be changed from one state to another by heating and cooling.- Light travels in a straight line until it strikes an object. Light can be absorbed by the object.- Heat can be produced in many ways, such as burning, rubbing, or mixing one substance with another. Heat can move from one object to another by conduction.
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