Chemical reactions worksheets for Grade 6 science give students focused practice identifying how substances change, recognizing evidence of reactions, interpreting word equations, and applying conservation of matter. This review sheet moves from key vocabulary into scientific reasoning, so students practise both what happens during a chemical reaction and how to explain it.

What students review

• Reactants, products, evidence, and conservation of matter vocabulary
• Physical changes versus chemical changes in everyday examples
• Observable evidence such as gas production, temperature change, and new solids
• Word equations showing reactants and products
• Conservation-of-mass calculations using given reactant and product masses
• Scientific error analysis and written explanations about matter rearrangement

Practice that goes beyond recall

Students complete a vocabulary match, classify examples as physical or chemical changes, and analyze a vinegar-and-baking-soda investigation. A beaker scenario asks students to connect an observation to evidence that a gas was produced, while the word-equation section reinforces how reactants are transformed into new products.

The chemical reaction practice also includes a conservation of mass table with missing values. Students use the relationship between reactant mass and product mass to determine unknown quantities, then apply their understanding through reasoning questions about open systems and escaping gas.

Built for science review and application

The final tasks ask students to evaluate a claim about disappearing matter, explain evidence from burning a candle, and identify observations that would support the conclusion that a reaction occurred. These questions make the worksheet useful for independent science practice, class review, homework, assessment preparation, or a chemical changes review lesson.

Included in the resource

• ✔ Chemical reactions review worksheet
• ✔ Completed answer-key version
• ✔ Beaker observation illustration
• ✔ Conservation-of-mass table
• ✔ Word equation practice
• ✔ Short scientific reasoning responses

Because the tasks combine vocabulary, classification, observation, equations, mass conservation, and explanation, this resource gives teachers a concentrated Grade 6 chemistry review that checks whether students can apply chemical reaction concepts rather than simply repeat definitions.