8 NC Check-In Review Physical Science

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What is heat transfer?

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Heat transfer is the process of thermal energy moving from a hotter object to a cooler one.

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What happens to the temperature of a Slurpee when placed on a hot surface?

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The temperature of the Slurpee increases as heat is transferred from the hot surface to the Slurpee.

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What are reactants in a chemical equation?

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Reactants are the substances that undergo a chemical change in a reaction, found on the left side of the equation.

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What are products in a chemical equation?

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Products are the substances formed as a result of a chemical reaction, found on the right side of the equation.

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What is a chemical change?

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A chemical change is a process where substances combine or break apart to form new substances, often accompanied by fizzing, foaming, or burning.

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What is a physical change?

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A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

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What happens to water molecules when they boil?

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Water molecules move faster and move farther apart as they absorb heat.

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Which elements are most similar in properties?

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Elements in the same group of the periodic table have similar properties; for example, Nitrogen (N) and Phosphorus (P) are in the same group.

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What is the boiling point of water?

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The boiling point of water is 100 degrees Celsius (212 degrees Fahrenheit) at standard atmospheric pressure.

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What is thermal equilibrium?

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Thermal equilibrium is the state in which two objects in contact with each other reach the same temperature and no heat flows between them.