S1 w3 lesson 2 science safety true or false - baking soda and vinegar balloon - milan
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This document provides instructions for a science experiment combining baking soda and vinegar. It instructs students to tie back long hair, wear eye protection if needed, and pay attention to the teacher. The experiment involves pouring vinegar into a bottle and baking soda into a balloon, then releasing the baking soda into the vinegar to produce carbon dioxide gas that will inflate the balloon. Students are asked to observe what happens and analyze the chemical reaction that produces gas.
S1 w3 lesson 2 science safety true or false - baking soda and vinegar balloon - milan
- 1. True or false? I should……
- 2. Play with science equipment.
- 3. Tie back long hair.
- 4. Wear eye protection if necessary.
- 5. Keep paper and books near the burner.
- 6. Not pay attention to the teacher.
- 8. NOT play with science equipment.
- 9. Tie back long hair.
- 10. Wear eye protection if necessary.
- 11. But today, it is NOT necessary! Just be careful.
- 12. And of course, pay attention to Ms. Milan!
- 13. On to the experiment!
- 14. Step 1: Define the Problem What will happen if I combine baking soda and vinegar?
- 15. Step 2: Form a Hypothesis After mixing water and vinegar together with baking soda, I think…. Write the hypothesis in your book on page 22.
- 16. For this experiment, we will use…
- 17. Test the hypothesis: Step 1 Using your funnel pour vinegar into your bottle.
- 18. 1/3rd of the bottle should be filled
- 19. Step 2 Using another (dry) funnel pour baking soda into your balloon. Fill the balloon approx. 1/2 way.
- 20. Step 3 First, stretch the balloon. Then, cover the top of the bottle with your balloon. Make sure you don't let the baking soda spill into the bottle early.
- 21. Step 4 When ready, lift your balloon and let the baking soda fall into the vinegar.
- 22. Let’s watch and see what happens! https://www.youtube.com/watch?v=JK5-2X_GqP8
- 23. Step 6: Analyze and draw conclusions Open to page 25 and answer the questions in your book. Include any other observations.
- 24. Step 6 Discuss how the baking soda & vinegar produce a gas which fills the balloon.
- 25. Because HC2H3O2 (the acetic acid in vinegar) + NaHCO3 ("baking soda") gives:
- 26. NaC2H3O2 (sodium acetate) + H2CO3 (carbonic acid). The carbonic acid then breaks down into H2O (water) and C2O( carbon dioxide).