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Classroom Chemistry | Lesson 10 - Poinsettia Chemistry
Classroom Chemistry | Lesson 10 - Poinsettia Chemistry
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In this lesson students will use poinsettia leaves to make a special paper that can tell if a liquid is an acid or a base! This hands-on activity explores the chemistry of pH using the poinsettia plant and is ideal for grade 5.
After completing this lesson bundle, students will be able to:
- Understand the difference between an acid and a base
- Use an indicator to identify a solution as being acidic, basic or neutral
Additional resources included with the activity plan:
- Student worksheet
- Student observation chart
Additional resources required:
- Computer with internet connectivity
- Projector White board and markers
- Rubber or nitrile gloves
- Red leaves of a poinsettia plant
- 500mL glass jars
- Small glass containers
- Scissors
- Paper towel
- Q-tips
- Water
- Vinegar
- Baking soda
- Lemon juice
- Hairspray or heat protector spray
- Sprite, Ginger ale or 7-Up
- Liquid soap
- Spoon
- Coffee filters
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