CBSE Class 4 Science Solids Liquids And Gases Worksheet

Q1 ) Fill in the blanks:

   1. _________________ is the smallest unit of a substances that has all the properties of that substances.

   2. A molecule can be further broken down into still smaller units called _________.

   3. All kinds of matter in the world is made up of about _______kinds of atoms.

   4. Molecules are constantly _________________ towards each other and always in a state of __________________

   5. Potassium permanganate is _____________(soluble/insoluble) in water.

   6. Two liquids that donot dissolve in each other is called ___________.

   7. _______________ or _______________ brings about changes in matter .

   8. There are many __________ changes which keep on occurring inside our body all the time.

   9. Water in the oceans , river and lakes contains dissolved ___________ and ________________.

Q2 ) Differentiate between solids, liquid, gas.

Q3 ) Write 3 characteristics feature of physical change.

Q4 ) Why bubbles are formed on the sides of vessel and at the bottom of

Q5) Say whether the following changes are physical or chemical

   1. Melting of ice

   2. Burning of coal

   3. Changing of milk to curd

   4. Mixing of sugar in water.

   5. Changing of wheat to chappati.