Quiz on Changes in Matter

What is a physical change?

• A change that creates a new substance

• A change that involves chemical reactions

• A change that cannot be reversed

• A change that alters form or appearance

Which of the following is an example of a chemical change?

• Dissolving sugar in water

• Crushing a can

• Burning wood

• Melting ice

What happens to the composition of a substance during a physical change?

• It remains the same

• It changes completely

• It is destroyed

• It becomes more complex

What is formed when hydrogen and oxygen react?

• Ozone

• Carbon dioxide

• Hydrogen peroxide

• Water

Which of the following is a sign of a chemical change?

• Change in shape

• Change in temperature

• Change in color

• Change in size

What happens to ice when it melts?

• It freezes again

• It becomes a different substance

• It changes from solid to liquid

• It evaporates into gas

What is an example of a reversible physical change?

• Cooking an egg

• Melting ice

• Rusting iron

• Burning paper

What is the result of adding sugar to tea?

• It is a chemical change

• The sugar disappears

• A new substance is formed

• It is a physical change

What does the term 'distinct' mean in the context of substances?

• Identical

• Separate or different

• Combined

• Similar

What is a common observable sign of a chemical change?

• Formation of bubbles

• All of the above

• Formation of a solid

• Change in color