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Exploring Chemical Reactions

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Exploring Chemical Reactions

🧪 Part 1: Understanding Chemical Reactions

1. What is a chemical reaction?
2. In a chemical reaction, what happens to atoms?

They disappear completely

They are rearranged to make new substances

They multiply to create more atoms

They stay exactly the same

3. Complete the sentence:

In a chemical reaction, the substances we start with are called _____________ and the new substances formed are called _____________.

4. Which of these are examples of chemical reactions? (Tick all that apply)

Cooking an egg

Melting ice

Rusting of iron

Burning wood

Digesting food

Cutting paper

⚖️ Part 2: Identifying Reactants and Products

5. For each chemical reaction below, identify the reactants and products:

a) Sodium + Chlorine → Sodium Chloride (salt)

Reactants: _________________________

Products: __________________________

b) Iron + Oxygen → Iron Oxide (rust)

Reactants: _________________________

Products: __________________________

c) Carbon + Oxygen → Carbon Dioxide

Reactants: _________________________

Products: __________________________

6. When vinegar (acetic acid) and baking soda (sodium bicarbonate) react, they produce carbon dioxide gas, water, and sodium acetate. Write this as a word equation:

_________________ + _________________ → _________________ + _________________ + _________________

7. Explain why bubbles form when vinegar and baking soda are mixed together:

🌟 Part 3: Chemical Reactions in Everyday Life

8. Think about chemical reactions that happen in your daily life. Give three examples and explain why each one is important:

Example 1: _________________________________

Why it's important:

Example 2: _________________________________

Why it's important:

Example 3: _________________________________

Why it's important:

9. Reflection: What surprised you most about chemical reactions today? How might understanding chemical reactions be useful in your future?

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