3.1 Reversible and irreversible changes Flashcards
1
Q
What can cause substances to change?
A
Heat makes substances change.
2
Q
What are two major changes in substances?
A
Reversible change and irreversible change.
3
Q
What is reversible change?
A
We say that changes are reversible because we can change solid ice back to liquid water and liquid water back to solid ice.
4
Q
What is irreversible change?
A
When some substances are heated, the changes be reversed. We call these irreversible changes.
