Science Review Name :
Change in materials Class : Primary 2
Answer the questions below briefly.
1. Mention three ways to change a material.
By __________________, ___________________ and_________________
2. Some materials can be changed back. These are called
_______________ changes.
3. One of the examples of a reversible change is ______________ ice.
4. An Irreversible change means the materials ________________ be
changed back.
5. When heated, a chocolate bar will ___________________
6. Sugar will _________________ when you put it into water and stir
the water.
7. Two things that do not dissolve in water are _____________ and
____________
8. Write ‘R’ when the change is reversible and ‘IR’ when the change
is irreversible.
Burning wood ____ Melting ice ____ Cutting paper ____
9. Lily was doing an experiment to see if these substances would
dissolve in water. She prepared three cups with the same shape
and size. She poured the same amount of water into each cup.
After that she put one spoon of sugar, rice and brown sugar into
each cup separately. Lastly, she stirred each cup for 30 seconds.
Change in materials Class : Primary 2
Answer the questions below briefly.
1. Mention three ways to change a material.
By __________________, ___________________ and_________________
2. Some materials can be changed back. These are called
_______________ changes.
3. One of the examples of a reversible change is ______________ ice.
4. An Irreversible change means the materials ________________ be
changed back.
5. When heated, a chocolate bar will ___________________
6. Sugar will _________________ when you put it into water and stir
the water.
7. Two things that do not dissolve in water are _____________ and
____________
8. Write ‘R’ when the change is reversible and ‘IR’ when the change
is irreversible.
Burning wood ____ Melting ice ____ Cutting paper ____
9. Lily was doing an experiment to see if these substances would
dissolve in water. She prepared three cups with the same shape
and size. She poured the same amount of water into each cup.
After that she put one spoon of sugar, rice and brown sugar into
each cup separately. Lastly, she stirred each cup for 30 seconds.
