CBSE Class 5 Science Sedimentation Worksheet

Q1 Fill in the blanks with one of the words suggested in the brackets.

Question 1. I think that the best method to remove large floating particles is __________________(Sedimentation, filtration, decantation). These particles are said to be ________________ (insoluble, soluble).
Answer: I think that the best method to remove large floating particles is filtration (Sedimentation, filtration, decantation). These particles are said to be insoluble (insoluble, soluble).
In simple words: Filtration uses a filter paper or strainer to trap large, floating bits that do not dissolve in water.

Exam Tip: Remember that substances which do not dissolve in liquids are called insoluble.

Question 2. ___________________ (Sedimentation, filtration, decantation, distillation) may remove invisible particles. These particles are said to be __________________ (insoluble, soluble) in water.
Answer: Distillation (Sedimentation, filtration, decantation, distillation) may remove invisible particles. These particles are said to be soluble (insoluble, soluble) in water.
In simple words: Dissolved (soluble) impurities cannot be seen and need distillation or evaporation to be separated from water.

Exam Tip: Distillation involves boiling water to create steam and then condensing the steam back into pure liquid water, leaving dissolved impurities behind.

Question 3. The salt in sea water can be separated using ____________________ (sedimentation, filtration, decantation, evaporation).These particles are said to be __________________(insoluble, soluble) in water.
Answer: The salt in sea water can be separated using evaporation (sedimentation, filtration, decantation, evaporation). These particles are said to be soluble (insoluble, soluble) in water.
In simple words: Salt dissolves completely in water, so we heat the water until it evaporates, leaving the salt behind.

Exam Tip: Evaporation is widely used in salt pans near coastal areas to obtain common salt from sea water.

Question 4. The pulp in orange juice could be separated using_________________ (sedimentation, filtration, decantation).These particles are said to be __________________ (insoluble, soluble) in water.
Answer: The pulp in orange juice could be separated using filtration (sedimentation, filtration, decantation). These particles are said to be insoluble (insoluble, soluble) in water.
*(Note: Decantation can also separate heavy pulp if allowed to settle, but filtration is the most efficient and standard method.)*
In simple words: Pulp consists of solid pieces suspended in the liquid juice that do not dissolve.

Exam Tip: Use a strainer or filter paper when separating solid fruit bits from liquid juices.

Q2 Identify the following processes and label them.

Question 2. Identify the following processes and label them. [First diagram showing funnel, filter paper, and stand]
Answer: Filtration
In simple words: The diagram shows solid particles retained on filter paper while clear liquid passes through into the beaker.

Exam Tip: Always identify filtration by the presence of a funnel and filter paper.

Question 2. Identify the following processes and label them. [Second diagram showing distillation flask, condenser, and receiver flask]
Answer: Distillation
In simple words: Distillation boils a liquid into vapor and then cools the vapor back into liquid to separate pure substances.

Question a. Gas that kills the germs - ENICHORL
Answer: CHLORINE
In simple words: Chlorine gas is added to water supplies to kill harmful germs and bacteria.

Exam Tip: Chlorine disinfection makes tap water safe for drinking.

Question b. Water fit for drinking is known as - ABLETOP
Answer: POTABLE
In simple words: Potable water means water that is clean, purified, and safe for human consumption.

Exam Tip: Do not confuse "potable" (drinkable) with "portable" (easy to carry).