Chemical Reactions Introduction

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Chemical reaction diagram showing reactants and products

🧪 Part 1: Key Vocabulary

1. Match each term with its correct definition by drawing lines:

Chemical Reaction

Reactants

Products

The substances that are formed in a chemical reaction

A process where atoms are rearranged to form new substances

The starting substances in a chemical reaction

2. Fill in the blanks using the words: reactants, products, rearranged

In a chemical reaction, the _____________ are the starting substances. During the reaction, atoms are _____________ to form new substances called _____________.

⚗️ Part 2: Identifying Reactants and Products

3. Look at this chemical reaction: Hydrogen + Oxygen → Water

Reactants: _________________________

Products: __________________________

4. Circle the correct answer for each reaction:

Reaction: Iron + Oxygen → Rust

What are the reactants?

Iron and Oxygen

Rust

Iron and Rust

5. Complete this reaction by identifying what's missing:

Baking Soda + Vinegar → _____________ + Water + Carbon Dioxide Gas

Hint: Think about what you might see left behind after the fizzing stops.

6. Check all the statements that are TRUE about chemical reactions:

Atoms disappear during chemical reactions

Atoms are rearranged to form new substances

The products are always the same as the reactants

New substances with different properties are formed

🔬 Part 3: Thinking Like a Scientist

7. Describe one chemical reaction you have observed in everyday life (e.g., cooking, rusting, burning):

8. What question would you like to investigate about chemical reactions? Write one question you're curious about:

9. Extension Challenge: Draw a simple diagram showing how atoms might rearrange in the reaction: Carbon + Oxygen → Carbon Dioxide

Chemical Reactions Introduction

Chemical Reactions Introduction

🧪 Part 1: Key Vocabulary

⚗️ Part 2: Identifying Reactants and Products

🔬 Part 3: Thinking Like a Scientist

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