What Happens When Fuels Burn? Amplify 3.1

What are fuels?

• Substances that release energy when they burn

• Substances that absorb energy

• Substances that cool down when burned

• Substances that do not change when burned

What is gasoline primarily used for?

• Heating homes

• Running cars and buses

• Cooking food

• Generating electricity

What happens to the gasoline in a car after a long trip?

• It remains in the tank

• It evaporates into the air

• It is used up and the tank becomes empty

• It turns into water

What is the role of wood when burned in a fireplace?

• It acts as a catalyst.

• It is the fuel that keeps the fire going.

• It absorbs heat.

• It prevents the fire from spreading.

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What happens to gasoline when it burns in an engine?

• It turns into water.

• It disappears, leaving an empty tank.

• It becomes a solid.

• It changes color.

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Who was the scientist that studied the masses of substances before and after a chemical reaction in the 1700s?

• Isaac Newton

• Albert Einstein

• Antoine Lavoisier

• Marie Curie

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What is a chemical reaction?

• A process where substances change into other substances.

• A process where substances remain unchanged.

• A process where substances are destroyed.

• A process where substances are created from nothing.

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Who was the French scientist that studied the masses of substances before and after a chemical reaction in the 1700s?

• Marie Curie

• Antoine Lavoisier

• Louis Pasteur

• Albert Einstein

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What did Antoine Lavoisier discover about the mass of reactants and products in a chemical reaction?

• The mass of the products is always greater

• The mass of the reactants is always greater

• The mass of the reactants and products is the same

• The mass of the products is always less

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What law did Lavoisier's experiments help to establish?

• Law of Gravity

• Law of Thermodynamics

• Law of Conservation of Matter

• Law of Motion

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