Alok added one spoonful of glucose powder in each of the following and stirred:

 (i) A glassful of cold water

(ii) A glassful of water at room temperature

(iii) A glassful of warm water

In which case, glucose dissolves first and why? Can Alok separate the glucose powder from water? How? Explain.

Solve the given crossword puzzle.

Across:

4. The scientific name for a substance that dissolves in the solvent.

5. Dissolving can be sped up by doing this.

6. Forms when a solvent evaporates from a saturated solution.

8. Formed when a solute dissolves in a solvent.

10. Formed when two or more atoms join together chemically.

12. Made from different substances that are not chemically joined.

15. Used to separate 2 liquids when one has a different boiling point than the other (two words)

16. A substance made from two or more different elements that have been chemically joined.

17. Used to separate a solid mixed with a liquid.

19. A solution that contains only a small amount of solute is said to be this.

Down:

1. Consists of atoms all with the same proton number.

2. Adding more solute to a solution will make it more_____.

3. Used to separate a solid dissolved a liquid when you want to collect both the solid and the liquid. 

7. The technique used to separate a mixture of 2 or more coloured pigments.

9. Substances that dissolve are said to be_____.

11. The technique used to recover a solid dissolved in a liquid.

13. The liquid that dissolves solutes.

14. A solution will become this when no more solute will dissolve into it.

18. Substances that do not dissolve are said to be_____.