Physical and Chemical change
Physical change:
- It is a change in the shape of matter without a change in its structure.
Ex : melting wax – grinding of sugar - Dissolving salt
Chemical change:
it is a change in the structure of a substance Producing a new substance with different Properties.
Ex : burning of paper and sugar – iron rust
Test
Question 1 : Complete The Following Statements
1. One kilogram = ………………grams.
2. The volume of liquid is measured by…………………..
3. Melting of iron is………………….. change.
4. common balance is used for measuring ……………...
Question 4:- Write the scientific term:
3. Everything occupies a space and has mass. ( )
(B) Classify the following into chemical and physical changes:
a. Burning a piece of wood. ( )
b. Making a chair from wood. ( )
c. Melting of ice. ( )
Physical change:
- It is a change in the shape of matter without a change in its structure.
Ex : melting wax – grinding of sugar - Dissolving salt
Chemical change:
it is a change in the structure of a substance Producing a new substance with different Properties.
Ex : burning of paper and sugar – iron rust
Test
Question 1 : Complete The Following Statements
1. One kilogram = ………………grams.
2. The volume of liquid is measured by…………………..
3. Melting of iron is………………….. change.
4. common balance is used for measuring ……………...
Question 4:- Write the scientific term:
3. Everything occupies a space and has mass. ( )
(B) Classify the following into chemical and physical changes:
a. Burning a piece of wood. ( )
b. Making a chair from wood. ( )
c. Melting of ice. ( )