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Fifth Grade (Grade 5) Reactions Questions

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Grade 5 Reactions
In a reversible change,
  1. matter can not be changed back
  2. matter can be changed back
  3. matter doesn't exist
  4. matter is always liquid
Grade 5 Reactions
What is the term used to describe a physical or chemical change in which energy is given off?
  1. exothermic
  2. endothermic
  3. change of state
  4. none of the above
Grade 5 Reactions
Carbon dioxide is formed when the following two substances are mixed together
  1. milk and vinegar
  2. baking soda and vinegar
  3. baking soda and water
  4. sugar and water
Grade 5 Reactions
We may be seeing a reaction take place when there are bubbles, color changes, or temperature changes.
  1. True
  2. False
Grade 5 Reactions
List two things that could tell us that a chemical reaction may be happening.
Grade 5 Reactions
One of the ending materials in a chemical reaction is called a                .
  1. recipe
  2. reactant
  3. product
  4. atom
Grade 5 Reactions
Rusting is a chemical reaction and not a physical reaction because                                                        a new substance is produced in the rusting process.                                                       
Grade 5 Reactions
One of the starting materials in a chemical reaction is called a                .
  1. product
  2. ingredient
  3. insulator
  4. reactant
Grade 5 Reactions
In a chemical reaction new atoms are always created or destroyed.
  1. True
  2. False
Grade 5 Reactions
Which is a chemical reaction?
  1. paper tears
  2. sugar dissolves
  3. water boils
  4. paper burns
Grade 5 Reactions
Give one example of a chemical reaction you experience every day.
Grade 5 Reactions
What new substances can be formed when table salt is added to copper and aluminum?
  1. copper (II) oxide and aluminum oxide
  2. copper (II) oxide and aluminum chloride
  3. copper (II) chloride and aluminum chloride
  4. copper (II) chloride and aluminum oxide
  5. none of the above
Grade 5 Reactions
A change of          colour          is also evidence of a            chemical            reaction.
Grade 5 Reactions
What two substances can speed up rusting?
  1. Water and chlorine
  2. Water and Salt
  3. Alcohol and Vinegar
  4. None of the above
Grade 5 Reactions
When oxidation occurs, a                                                           substance combines with oxygen to form a new substance.                                                          
Grade 5 Reactions
When a copper penny oxidizes, it forms a new substance called:
  1. iron oxide
  2. copper sulphate
  3. copper oxide
  4. aluminium oxide
  5. copper chloride
Grade 5 Reactions
What are five indicators of a chemical reaction?
Grade 5 Reactions
Chemical Equation
  1. The process by which particles leave a liquid and become a gas.
  2. A substance made by a chemical reaction.
  3. A statement of chemical symbols that shows what happens during a chemical reaction.
  4. A change in which matter keeps the same chemical properties; a change in size, shape, volume, or state of matter.
Grade 5 Reactions
Rusting is a slow process usually requiring             moisture.            
Grade 5 Reactions
                   Aluminium oxide                    is formed when aluminium goes through the process of oxidation.
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