Y2T2: REVERSIBLE & IRREVERSIBLE CHANGES

_{Choose the correct option to complete the sentence.}

A reversible change is...

• a change that cannot be undone.

• a change that can be undone.

_{Choose the correct option.}

The material that changed cannot go back to how it was before. Instead, new material is formed.

• reversible change

• irreversible change

Organize these options into the right categories.

Groups:

(a) Reversible Change:

,

(b) Irreversible Change:

• 
• 
• 
• 
• 
• 
• 
• 

_{Choose the correct option to complete the sentence.}

...involves mixing a solid with a liquid

• Mixing

• Dissolving

• Solution

• Solvent

Match the following words with their correct definitions.

• solution

• The substance that dissolves to form a solution.

• solute

• A mixture of two or more substances that stays evenly mixed.

• solvent

• A substance that breaks down or dissolves another substance.

Add the labels to show the different substances.

a

b

c

solution

solute

solvent

Label the different substances of the mixture.

a

b

c

solute

solvent

solution

What is a reversible change?

What is an irreversible change?

Give two example of an irreversible change.