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Chemical Reactions Exploration
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Chemical Reactions Exploration
🧪 Part 1: Understanding Chemical Reactions
1. What is a chemical reaction?
When two things mix and something new happens
When you stir water with a spoon
When you break a piece of paper
2. Which of these are signs that a chemical reaction has happened? (Tick all that apply)
Bubbles or gas appear
The colour changes
The temperature gets warmer or colder
Something gets bigger
3. When we mixed baking soda and vinegar in class, what did we observe?
Nothing happened
Bubbles formed and it fizzed
It turned into ice
4. Which of these everyday examples show chemical reactions?
Leaves turning brown in autumn
Baking a cake in the oven
Melting ice cubes
Iron rusting
✏️ Part 2: Describing Our Experiment
5. Complete this sentence about our experiment:
When I mixed baking soda and ___________, I saw ___________ form and heard a ___________ sound.
6. Draw what you observed during the baking soda and vinegar experiment. Label the bubbles and any other changes you noticed.
7. Explain why the baking soda and vinegar experiment shows a chemical reaction has happened:
8. What safety equipment did we use during the experiment and why?
🔍 Part 3: Think and Apply
9. You see an old bicycle with orange-brown patches on the metal parts. What chemical reaction do you think has happened?
10. If you wanted to show a friend a safe chemical reaction at home, which materials from our lesson could you use?
Materials: _____________ and _____________
What would your friend see? _________________________________
11. Rate your confidence with today's learning:
😊 I understand chemical reactions well
🙂 I understand some parts
😐 I need more help to understand
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