NOTE: Those these are indicated for 5th grade, they best align with both 5th and 8th grade AzSS standards.

Students use baking soda, calcium chloride and other common substances to discover that when certain substances combine, a chemical reaction takes place, and new substances are formed.

Lesson 3.1 - What’s the Difference between Baking Soda and Baking Powder? image

Lesson 3.1 – What’s the Difference between Baking Soda and Baking Powder?

Students design and conduct a test using baking soda and baking powder with vinegar to investigate the question: Will baking soda or baking powder produce more gas when vinegar is added?

 

 

 

 

 

Lesson 3.2 - Exploring Baking Powder image

Lesson 3.2 – Exploring Baking Powder

Students help design a test using baking soda, corn starch, and cream of tartar to investigate the question: Which two of the three ingredients in baking powder react to make it bubble when water is added?

 

 

 

 

 

Lesson 3.3 - Forming a Precipitate image

Lesson 3.3 – Forming a Precipitate

Students combine an Ivory Soap solution with an Epsom salt solution to produce a solid “soap scum” to investigate the questions: What happens when you mix soap with hard water? and Is soap scum different from soap?

 

 

 

 

 

 

 

Lesson 3.4 - Chemical Reactions & Color Change image

Lesson 3.4 – Chemical Reactions & Color Change

Students add laundry detergent powder (a base) and cream of tartar (an acid) to a red cabbage indicator to investigate the question: What can the color of an indicator tell you about the substances added to it?

 

 

 

 

 

Lesson 3.5 - Different Substances React Differently image

Lesson 3.5 – Different Substances React Differently

Students combine citric acid with calcium chloride and citric acid with baking soda to investigate the question: What are the similarities and differences between the two reactions? and Do substances react in a characteristic way?

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