Science in Careers

Science in Careers: Flavor Chemists

TEKS: 5.6.B, 5.3.A

Review Questions

Dropdown

In mixtures, each substance _____ its identity.

Select answer

Multiple Choice

True or False: Mixtures can be analyzed as a system because they made up of parts.

• False
• True

Multiple Choice

What happens to the physical properties of substances in a mixture?

• They form new properties.

• They disappear completely.

• They keep their original properties.

• They change based on the other substances.

Multiple Select

A person makes a mixture by pouring hot water into a bowl of cold rocks. What properties are stable and stay the same for the substances in this mixture?

• volume

• physical state (solid, liquid, gas)

• mass

• ability to sink

• temperature

Multiple Choice

A person makes a mixture by pouring hot water into a bowl of cold rocks. What property will change for the substances in this mixture?

• volume

• physical state (solid, liquid, gas)

• mass

• ability to sink

• temperature

Today, you will learn about...

• ​the work of flavor chemists,

• how their work impacts your life

• and why it's important for them to know about physical properties and mixtures.

Think about the differences between the bitter, salty, sweet, and sour flavors. What about the difference between things that smell like flowers and those that just smell fruity?

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If you have a sensitive nose and can taste the differences between food, you might be interested in becoming a flavor chemist!

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Close your eyes and inhale through your nose. Imagine you are

smelling a strawberry. Can you almost taste it?

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Word Cloud

Name some physical properties of strawberries.

Can you easily identify things like foods or plants by the way they smell? The smell and taste of food are closely related.

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Smell and taste are both properties of matter. Both are produced by the way our senses respond to substances.

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Smell and taste are both properties of matter. Both are produced by the way our senses respond to substances.

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The next time you see a food package, look at the ingredient label. If you see "artificial flavor" on the label, you know that flavor chemists have been at work.

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Flavor chemists search the world for appealing smells and tastes that

they can re-create in the lab to make food appealing. If you think there is just one strawberry flavor, you would be in for a surprise.

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Flavor chemists have created hundreds of strawberry flavor variations. A sweet, a sour, and a seedy strawberry flavor are just

three of the many varieties that can be added to gum, drinks, candy, cereal, or muffins.

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Multiple Choice

TRUE or FALSE: Flavor chemists have created only one artificial strawberry flavor.

• TRUE
• FALSE

All these flavors are combinations of different chemicals in varying amounts. Some are natural flavors and some are artificial, or made by people.

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Flavored water, microwave popcorn, bubble gum, and breakfast cereal are just a few of the foods that flavor chemists have given flavors to.

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The goal of the flavor chemist is to make something so appealing that you'll want to eat or drink it again and again.

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A piece of gum, for example, might have a burst of flavor when you first bite into it, and when the flavor goes away, you'll want another piece. Here are just a few substances flavor chemists use to create their taste sensations.

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1. Draw a mixture. (20 points)

2. Label at least 3 parts of your mixture (20 points)

3. Write a sentence about which physical properties changed or stayed the same before and after mixing the parts of the mixture. 20 points

4. Write your name and date on the front (10 points)

5. Use at least 3 colors 3 points (15 points)

6. Use most of your paper - don't leave white space! 3 points (15 points)

   Remember to be creative and have fun!

​Mixture Illustration

Food companies hire flavor chemists to work in their labs. There they study food ingredients in an effort to make food smell or taste better.

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They try to copy specific tastes or create new tastes. To be a flavor chemist you need a college degree with a background in chemistry or food science.

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Multiple Select

To be a flavor chemist you...

• have to earn a college degree

• need to study food science or chemistry

• have to be rich

• Have to be a man

Flavor chemists must understand that substances in mixtures maintain the physical properties of their substances.

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Why is it important for flavor chemists to understand physical properties.

Why is it important for them to understand mixtures?

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How do you think the work of a flavor chemist impacts your life each day?

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Great Job!

• This is the end of the Mixtures Unit.

• Test tomorrow

• On Friday, we will start a new unit on a special kind of mixture.

  
  

​Now that you have completed your exploration in this lesson, revisit the image from the start of the lesson.

Exit Ticket

What are the properties of sand and iron filings before and

after being combined in a mixture?

Exit Ticket

​Answer the Guiding Question:

What are the properties of sand and iron filings before and after being combined in a mixture?

1. Use complete sentences. 20 points

2. Use at least 30 words. 30 points

3. Use a capital at the beginning of each sentence and a period at the end. 20 points

4. Answer is clear and accurate 30 points