Laws of Conservation

How does this illustration demonstrate the Law of Conservation of Mass?

• Carbon is being created.

• Carbon is being destroyed.

• Carbon is not being created or destroyed but merely transferred from place to place.

• Carbon is being created, destroyed, and transferred from place to place.

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NGSS.MS-PS1-5

Living things obey the law of conservation of energy. Which of the following statements does NOT summarize a key idea of this law?

• During an ordinary chemical reaction, no energy is created.

• Energy can be changed in form during a chemical reaction.

• During an ordinary chemical reaction, no energy is destroyed.

• Energy can be destroyed during an ordinary chemical reaction.

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NGSS.MS-PS3-5

Living systems obey the law of conservation of mass. Which of the following statements supports the main ideas of the law of conservation of mass?

• The substances that take part in a chemical reaction are the same as the substances that are formed by the reaction.

• The masses of the substances that take part in a chemical reaction are less than the masses of the substances that are formed.

• The masses of the substances that take part in a chemical reaction are equal to the masses of the substances that are formed.

• The masses of the substances that take part in a chemical reaction are greater than the masses of the substances formed by the reaction.

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NGSS.MS-PS1-5

What does the law of conservation of energy state?

• Energy can be created or destroyed.

• Energy cannot be transferred only created or destroyed.

• Energy cannot be created, destroyed, or transformed.

• Energy cannot be created or destroyed only transformed.

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NGSS.MS-PS3-4

NGSS.MS-PS3-5

How does a fox eating a rabbit demonstrate the Law of Conservation of Energy?

• Energy is created and transformed.

• Energy is destroyed.

• Energy is both created and destroyed.

• Energy is neither created nor destroyed only transformed.

Tags

NGSS.MS-PS3-5

What happens to the total mass of the reactants in a chemical reaction?

• It increases.

• It decreases.

• It remains the same.

• It changes.

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NGSS.MS-PS1-5

The law of conservation of mass states that:

• In a closed system, matter is neither created nor destroyed.

• In a closed system, matter is destroyed.

• In a closed system matter is both created AND destroyed

• In a closed system, matter is created

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NGSS.MS-PS1-5

The Law of Conservation of Energy states:

• Energy can be created or destroyed but NOT transformed

• Energy can't be created, destroyed, or transformed

• Energy cannot be created or destroyed, it can only be transformed.

Tags

NGSS.MS-PS3-5

DRAW AND LABEL AN EXAMPLE OF THE LAW OF CONSERVATION OF ENERGY

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NGSS.MS-PS3-5

According to the law of conservation of energy, the total amount of energy in the universe is:

• increasing

• decreasing

• constant

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NGSS.HS-PS3-2