Available Answers

1. 1.

   Fill in the blanks.

   1. Matter is made up of _____________________.
   2. A ramp is an example of a simple machine called ______________________.
   3. On freezing, water gets converted into _____________________ state.
   4. On heating, a solid changes into a liquid, this process is called  __________________.
   5. In a salt solution, salt is the _________________.
2. 2.

   Write true or false.

   1. In second class lever, the fulcrum is between the load and effort.
   2. Liquids have a definite volume.
   3. A stapler is a first class lever.
   4. Oxygen gas is soluble in water.
   5. Melting and evaporation takes places due to heating.
3. 3.

   Difference between solids and gases.
4. 4.

   Difference between first class lever and third class lever.
5. 5.

   Difference between simple and complex machines.
6. 6.

   Identify and define the given different types of levers.

   a. 

   

   b.