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Elephant Toothpaste Vocabulary Mix-Up
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Elephant Toothpaste Vocabulary Mix-Up
🧪 Part 1: Match the Vocabulary
Draw a line to match each science word with its correct meaning.
A. Catalyst
B. Chemical reaction
C. Exothermic
D. Endothermic
E. Reactant
F. Product
G. Decomposition
H. Mixing
1. A substance made during a chemical reaction.
2. Combining two or more substances together.
3. A substance that helps a reaction happen faster without being used up.
4. A reaction that takes in heat energy from its surroundings.
5. A starting substance in a chemical reaction.
6. A reaction that releases heat energy to its surroundings.
7. A reaction in which one substance breaks down into simpler substances.
8. A process in which substances change to form new substances.
✏️ Part 2: Use the Words
9. Complete the sentence: In elephant toothpaste, yeast acts as a __________ because it makes the reaction happen faster.
10. The elephant toothpaste reaction is usually described as:
Exothermic, because it releases heat
Endothermic, because it takes in heat
Neither, because no energy is involved
11. What evidence could show that a chemical reaction has happened in the experiment? Tick all that apply.
New foam is produced
The temperature changes
A new substance may form
The substances simply remain unchanged
12. Explain how mixing the ingredients can lead to a chemical reaction. Use at least two vocabulary words.
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