Grade 7 Integrated Science – Mixtures Quiz
1. Define a mixture.
2. Matter can be found in form of...........
3. Depending on how particles in a mixture interact,they can be either form a.........and ........
4. A........... mixture has its components uniformly distributed throughout the mixture.
5. A homogeneous mixture contains......state of matter(s).
6. What happens when salt and water are mixed together?
7. Components in a heterogeneous mixture are........
8. Oxygen and carbon dioxide are ........
9. The process of dissolving a solid and a liquid to form a homogeneous mixture is called.......
10. A solid that dissolves in a liquid is called a........
11. A liquid that dissolves a solute is called a..........
12. A solute and a solvent make a ......
13. Solid that cannot dissolve in liquids are called ........solids
14. Liquids that mix with other liquids are called.........
15. Liquids that do not mix with other liquids are called........
16. What is a pure substance?
17. What happens when a solid is heated?
18. Impurities..........the ...........points and raise the........points of as substances.
19. The method of separation of mixtures depends on the following except?
20. Below are methods for separating mixtures.Which one is not?
21. ..........and ........are the process of separating solids that do not dissolve from liquids.
22. The solid that remains in the container after decantation is called...........
23. The liquid collected after filtration is called a.........
24. The solid left on the filtering material is called a. ........
25. ........ is the process of separation of mixtures where one substances evaporates and leaves the other in the container.
26. Which method can be used to separate a mixture of water and salt?
27. Which method can be used to separate a mixture of water and sand?
28. Which method can be used to separate a mixture of sand and naphthalene?
29. ..... ......is the process of separating different colour pigments from a mixture of colours.
30. The following are some of the applications of methods of separating mixtures in everyday life except?
31. What is a mixture?
A mixture is a material made up of two or more different substances which are mixed but are not combined chemically.
32. What does it mean if a mixture is heterogeneous?
33. What does it mean if a mixture is homogeneous?
34. To separate the sugar and lemonade what method should you use?
35. To separate trail mix what method should you use?
36. To separate iron filings and sulfur what method should you use?
37. What is the measure of how much a substance dissolves in a given volume?
38. Which mixture separation method uses a net?
39. Which mixture separation method would work with picking up nails?
40. Which mixture separation method would use to separate sugar from water?
41. Which list is made of mixtures?
42. What happens when you mix dirt and water?
43. A combination of pure substances, not in fixed amounts, that can be easily separated.is a......
44. This is a mixture of two or more substances in which one or more of these substances (solutes) is dissolved in another substance.
45. What are the two types of Mixtures?
46. One specific type of homogeneous mixture is.....
47. Cookies and cream ice cream would be classified as....
48. Two substances physically combined and that appears the same throughout is classified as....
49. Salt dissolves in water like ----
50. Students are conducting an experiment with salt water. A large quantity of sand is added to the container of salt water. What do you expect to observe?
51. Something that dissolves very easily in water .
52. when you have something that does not dissolve it is referred to as being.
53. Which of the following is an example of a mixture?
Air is a mixture of gases such as nitrogen, oxygen, carbon dioxide, and others.
54. What is a mixture?
A mixture is a material made up of two or more different substances which are mixed but are not combined chemically.
55. Which of the following is a compound?
Salt (sodium chloride) is a compound made of sodium and chlorine elements chemically combined in a specific ratio.
56. What happens when a mixture is formed?
In a mixture, the individual components maintain their properties and can be separated by physical means.
57. Which of the following is an element?
Gold is an element because it is made up of only one type of atom: Au (gold).
58. How can you separate a salt and water mixture?
By evaporating the water, you can separate the salt which remains behind.
59. Which of the following is not a property of a mixture?
Mixtures do not have fixed properties as they can vary depending on the proportion of different components present.
60. When a mixture is formed, how are the components mixed?
In a mixture, the components are physically mixed together but do not undergo a chemical reaction.
61. Which of the following is an example of an element?
Copper is an element because it is composed of only one type of atom: Cu (copper).
62. What happens when a compound is formed?
When elements chemically combine to form a compound, their properties combine to create new properties different from the original elements.