The Amazing World of Solutes, Solvents, and Solutions
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
States of Matter: Solids, Liquids, and Gases
SubtopicStates of Matter: Solids, Liquids, and Gases under The Amazing World of Solutes, Solvents, and Solutions for Grade 4 CBSE.
Preview questions (no answers)
- 1.
Aquatic animals like fish can breathe under water because of:
A.Solid oxygen in water
B.Liquid nitrogen in water
C.Dissolved oxygen in water
D.Evaporated air
- 2.
Which of these is an example of a solid dissolving in a liquid?
A.Oil in water
B.Salt in water
C.Gas in water
D.Sand in water
- 3.
What do we call the process where a solid changes into a liquid?
A.Evaporation
B.Melting
C.Condensation
D.Freezing
- 4.
Which of the following does NOT have a definite shape but has a definite volume?
A.Oxygen
B.A pencil
C.Milk
D.Nitrogen
- 5.
Matter is defined as anything that has:
A.Only mass
B.Only volume
C.Both mass and occupies space
D.A fixed shape always
- 6.
Which statement is true about the molecules in steam?
A.They are closer together than in liquid water
B.They move slower than in liquid water
C.They have more energy and move faster than in liquid water
D.They are arranged in a fixed pattern
- 7.
What is common between milk and honey when mixed with water?
A.They are both insoluble
B.They are both gases
C.They are both miscible/soluble
D.They both turn water into ice
- 8.
When a candle burns, the wax melts and then some of it 'disappears'. What is the most likely explanation for the 'disappearing' wax?
A.The wax molecules are destroyed
B.The liquid wax turns into a gas (carbon dioxide and water vapor)
C.The wax turns into a solute dissolved in air
D.The wax molecules hide inside the wick
- 9.
Which of these is a property of all matter (solids, liquids, and gases)?
A.They all have a fixed shape
B.They all occupy space and have mass
C.They all can be compressed into a smaller volume
D.They all can flow
- 10.
Why is it easier to swim in sea water than in fresh river water?
A.Sea water is a solution containing many dissolved salts, making it denser
B.Sea water is a pure solvent with no solutes
C.River water is a gas-liquid mixture
D.Sea water has fewer molecules per than river water
Download the worksheet for The Amazing World of Solutes, Solvents, and Solutions - States of Matter: Solids, Liquids, and Gases to practice offline. It includes additional chapter-level practice questions.
Properties of Solutes and Solvents
SubtopicProperties of Solutes and Solvents under The Amazing World of Solutes, Solvents, and Solutions for Grade 4 CBSE.
Preview questions (no answers)
- 1.
If you put a spoonful of flour in water and stir it, the water becomes milky and the flour eventually settles. Is this a true solution?
A.Yes, because it changed color
B.No, because the flour did not dissolve
C.Yes, because we used water
D.No, because flour is a liquid
- 2.
Which of these is the most common solvent found in nature?
A.Oil
B.Milk
C.Water
D.Vinegar
- 3.
In a mixture of 'Water + Orange Juice Concentrate', what is the solvent?
A.Orange juice concentrate
B.Water
C.Sugar
D.Vitamin C
- 4.
Which of these is a gas that is dissolved in the water of ponds and rivers, helping fish to breathe?
A.Carbon
B.Oxygen
C.Nitrogen
D.Smoke
- 5.
In a science lab, a student mixes grams of sugar into grams of water to form a solution as shown in the flowchart. According to the properties of solutions, what is the total mass of the sugar solution produced?
A.200 grams
B.15 grams
C.215 grams
D.185 grams
- 6.
A substance that does not dissolve in a particular solvent is said to be:
A.Soluble
B.Insoluble
C.Miscible
D.Dilute
- 7.
If you have a solution of 5g sugar in 100ml water (Solution A) and 20g sugar in 100ml water (Solution B), which one is more concentrated?
A.Solution A
B.Solution B
C.Both are equally concentrated
D.Neither is a solution
- 8.
Why does stirring help a solute dissolve faster in a solvent?
A.It makes the solvent particles stop moving
B.It brings fresh solvent in contact with the solute more quickly
C.It increases the mass of the solute
D.It makes the solute particles heavier
- 9.
Which of the following statements about solutions is FALSE?
A.A solution is a type of mixture
B.The components of a solution can be separated by simple filtration
C.A solution is homogeneous
D.The solute can be a solid, liquid, or gas
- 10.
If you add a drop of ink to a glass of water, it slowly spreads until all the water is the same color. This shows that:
A.Ink is insoluble
B.The particles of the solute (ink) move and spread throughout the solvent
C.The water molecules are pushing the ink to the bottom
D.Ink is a solvent
Download the worksheet for The Amazing World of Solutes, Solvents, and Solutions - Properties of Solutes and Solvents to practice offline. It includes additional chapter-level practice questions.
Saturated and Unsaturated Solutions
SubtopicSaturated and Unsaturated Solutions under The Amazing World of Solutes, Solvents, and Solutions for Grade 4 CBSE.
Preview questions (no answers)
- 1.
Which of these sentences is true about a saturated solution?
A.It can dissolve a lot more solute.
B.It cannot dissolve any more solute at that temperature.
C.It contains no solute at all.
D.It is always blue in color.
- 2.
In a solution, the substance that does the dissolving is the ________.
A.Solute
B.Solvent
C.Product
D.Solid
- 3.
To dissolve a solute faster, we should use ________ water.
A.Ice cold
B.Warm
C.Frozen
D.Very salty
- 4.
What can we say about a solution that is clear and has no solute at the bottom?
A.It is definitely saturated
B.It could be unsaturated
C.It is made of sand
D.It is a solid
- 5.
Which of these scenarios describes an unsaturated solution?
A.A cup of tea where sugar is piled at the bottom
B.A glass of water where a pinch of salt has completely dissolved
C.A jar of honey with sugar crystals at the bottom
D.Sea water where you can see salt on the beach
- 6.
What happens to the molecules of a solute when an unsaturated solution is formed?
A.They get larger
B.They break apart and spread throughout the solvent
C.They sink to the bottom
D.They turn into bubbles
- 7.
If you have a saturated solution of salt, which of these would describe the mixture?
A.A clear liquid with no salt
B.Salt crystals sitting at the bottom of the salty water
C.A solid block of salt
D.Steam rising from the water
- 8.
If you are given two identical-looking clear liquids, one saturated with salt and one unsaturated, which property would be different?
A.Their color
B.Their smell
C.The amount of solute they can still dissolve
D.Their ability to be poured
- 9.
What happens to the level of water in a beaker when you add a spoon of salt and it dissolves completely to form an unsaturated solution?
A.The level rises significantly.
B.The level stays almost the same because salt fits into the spaces between water molecules.
C.The level goes down because salt shrinks the water.
D.The water level disappears.
- 10.
An unsaturated solution is prepared by mixing of salt in of water. If you want to make it saturated using evaporation, what must you do?
A.Add more water and then boil it.
B.Boil it until some of the water leaves as steam, reducing the solvent volume.
C.Put it in the freezer until it turns into ice.
D.Filter the salt out and then boil the water.
Download the worksheet for The Amazing World of Solutes, Solvents, and Solutions - Saturated and Unsaturated Solutions to practice offline. It includes additional chapter-level practice questions.