Compounds and Mixtures - Brainpop 5/26

How is a compound different from a mixture?

• Mixtures are created through physical changes; compounds are created through chemical reactions.

• Compounds are created through physical changes; mixtures are created through chemical reactions.

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NGSS.MS-PS1-2

What occurs during a chemical reaction?

• Atoms of two or more elements are destroyed

• Atoms of two or more elements oppose one another

• Atoms of two or more elements bond together

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is true of a mixture?

• It is always thicker than the two chemicals that go into it

• It retains (keeps) the properties of the substances that make it up

• It can never be separated

Based on the information from the movie, what can you conclude about the most common chemical compound on earth?

• It's oxygen

• It's hydrogen gas

• It's carbon dioxide

• It's water

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NGSS.MS-PS1-1

What is true of a compound?

• It does not always retain the properties of the substances that make it up

• It must have water as one of its components

• It requires heat energy to make

Which of the following two ingredients can combine to make a compound?

• Salt and water

• Hydrogen and oxygen

• Eggs and butter

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is a heterogeneous mixture?

• Glue

• Honey

• Coffee

• Milk and cereal

Which of the following is an example of a chemical element?

• Salt

• Water

• Sodium

Where can you find a common homogenous mixture?

• Salt

• Coffee

• Milk and Cereal

The elements of a heterogeneous mixture can be distinguished visually. What does this mean?

• That two separate elements have been mixed together.

• That the components of the mixture cannot be separated.

• That you can see the different component parts of the mixture.