SCIENCE

3. The gas in air that helps in breathing is ______.
5. A force that acts when we push or pull something using our body is called ______ force.
7. When no more solute can dissolve in a solvent, the solution is called ______.
11. The shape formed when light is blocked by an object is called a ______.
12. The process of mixing solute and solvent to make a solution is called ______.
13. Materials that allow all light to pass through them are called ______.
15. The process of settling down of heavy particles in water is called ______.
16. The liquid in which a substance dissolves is called the ______.
19. Air occupies ______.
21. A dark shape formed when light is blocked is called a ______.
24. The force that pulls objects towards the Earth is called ______ force.
26. The force that slows down moving objects is called ______ force.
27. The bouncing back of light from a surface is called ______.
28. The force that helps a bicycle stop when brakes are applied is ______.

1. The force used when we lift a school bag is ______ force.
2. The gas used in balloons to make them rise in air is ______.
4. Pouring clear liquid from the top without disturbing the sediment is called ______.
6. Objects that produce their own light are called ______ objects.
8. Objects that do not produce their own light are called ______ objects.
9. The process of separating an insoluble solid from a liquid using filter paper is called ______.
10. The substance that dissolves in a solution is called the ______.
11. The mixture formed when salt dissolves in water is called a ______.
14. Materials that do not allow light to pass through them are called ______.
15. The main source of light on Earth is the ______.
17. The process of obtaining salt from sea water by heating is called ______.
18. Air has ______.
20. The force produced by a magnet is called ______ force.
22. dioxide The gas in air used by plants to make food is ______.
23. Light travels in a ______ line.
25. A natural luminous insect is the ______.