The starter and exit quiz of the lesson “Characteristics of chemical reactions”, from the unit “Understanding chemical reactions” (Year 8 Science) by Oak National Academy.
Free to use. Edit it, share it and hand it out to your students.
Oak National Academy
12 questions
When a substance changes from a solid to a liquid, it is called ___.
Which of the following is an example of a chemical change?
A ___ change is one that does **not** produce new substances and can often be reversed.
Which of the following represents a physical change?
What is the main difference between a physical change and a chemical change?
An ___ is a substance made of one type of atom.
What is a chemical reaction?
Where are products found in a chemical equation?
What do bubbles indicate in a chemical reaction?
Which observation(s) always indicate a chemical reaction has taken place?
___ are the elements or compounds before a reaction takes place.
Most chemical reactions can be classed as ___ reactions, because the reaction occurs in one direction only (where the reactants are converted into the products).
