Page 275 - Science Course 3 (Book 1)

Mo7-L5: Vocabulary Review

Direction: In this word search puzzle, find and circle the five terms listed below. Then write each term on
the line before its clue.
combustion decomposition double replacement
single replacement synthesis

1. Substance combines with oxygen and releases energy.

2. describes a type of reaction in which negative ions in
two compounds switch places, forming two new
compounds

3. Hydrogen peroxide breaks down to form water and
oxygen, for example.

4. describes a type or reaction in which one element
replaces another element in a compound

5. Magnesium reacts with oxygen and forms magnesium
oxide, for example.

Mo7-L5: Key Concept Organizer

Direction: Use your textbook to respond to each statement.

Type of Reaction Sample Equation Description

Synthesis

Decomposition

Single-Replacement

Double-Replacement

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