Conservation of Mass Quizizz

Which of the following best describes a closed system?

• A system where matter can freely enter and exit.

• A system where matter cannot enter or exit.

Which of the following best describes an open system?

• A system where matter can freely enter and exit.

• A system where matter cannot enter or exit.

Which of the following is an example of an open system?

• A sealed jar of pickles.

• A boiling pot of water without a lid.

• A thermos bottle.

• A closed refrigerator.

In the law of conservation of mass, which statement is true for a closed system?

• Mass can be created or destroyed.

• Mass remains constant over time.

• Mass can only increase.

• Mass can only decrease.

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NGSS.MS-PS1-5

How does the conservation of mass apply to chemical reactions in a closed system?

• The total mass of reactants is less than the total mass of products.

• The total mass of reactants is greater than the total mass of products.

• The total mass of reactants equals the total mass of products.

• Mass is not conserved in chemical reactions.

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Which of the following scenarios best illustrates the concept of an open system?

• A closed aquarium with fish and plants.

• A coffee cup without a lid.

• A sealed balloon.

• A closed circuit in electronics.

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NGSS.MS-ESS2-4

In which of the following situations is the conservation of mass principle most directly applied?

• Calculating the energy output of a solar panel.

• Balancing a chemical equation.

• Measuring the speed of a car.

• Estimating the height of a building.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Label the chemical equation.

a

b

Products

Reactants

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Identify a real-world example of a closed system.

• 
• 
• 
• 

Matter cannot be _________ or ___________ .

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NGSS.MS-PS1-5