SCIENCE QUIZ- MAGNO & PARRENO

Anything that occupies space and has mass. What is it?

• Solid

• Liquid

• Gas

• Matter

Answer explanation

The term 'matter' refers to anything that occupies space and has mass, encompassing solids, liquids, and gases. Therefore, the correct answer is 'Matter'.

Magnets pull other objects made of magnetic materials towards them. What do you call the force use in magnets?

• Magnetism

• Magnetic Field

• Limited Force

• Magnet Force

Answer explanation

The force used in magnets to attract magnetic materials is called the 'Magnetic Field'. It represents the area around a magnet where magnetic forces can be detected, making it the correct choice.

Which is the best way to get salt from a salty water?

• Evaporation

• Filtration

• Distillation

• Magnetism

Answer explanation

Distillation is the best method to obtain salt from salty water as it involves heating the water to create steam, which leaves the salt behind. The steam is then cooled to collect pure water, effectively separating salt from water.

Mix orange juice powder to water is what kind of mixture?

• Heterogenous Mixture

• Insoluble Mixture

• Homogenous Mixture

• Mixture

Answer explanation

Mixing orange juice powder with water creates a uniform solution where the components are evenly distributed, making it a homogenous mixture. In contrast, a heterogenous mixture would have distinct, separate components.

When sugar dissolves in water, the two substances appear as one. The sugar particles can no longer be identified. However, the taste of the water proves that the sugar was not lost after mixing. Its chemical property is retained and so the water taste sweet. What kind of solution is this?

• Solid in Liquid

• Solid in Solid

• Liquid in Liquid

• Gas in Liquid

Answer explanation

The solution formed when sugar dissolves in water is classified as 'Solid in Liquid' because sugar (a solid) is mixed into water (a liquid), resulting in a homogeneous mixture where the solid retains its properties.

This is a form of separating substances that involves letting an insoluble substance (a substance that will not dissolve in a solvent) settle at the bottle of a solvent.

• Filtration

• Evaporation

• Sedimentation

• Decantation

Answer explanation

Sedimentation is the process where an insoluble substance settles at the bottom of a solvent due to gravity, distinguishing it from filtration, evaporation, and decantation, which involve different separation methods.

How are mixture formed if sugar dissolve in water?

• Solid

• Liquid

• Dissolution

• Solution

Answer explanation

When sugar dissolves in water, it forms a solution. This is a homogeneous mixture where the sugar molecules are evenly distributed within the water, resulting in a liquid state. Thus, the correct answer is 'Solution'.

To separate rocks into different sized particles for road building and other construction projects, which method is applicable?

• Sieving

• Sifting

• Picking

• Drying

Answer explanation

Sieving is the method used to separate rocks into different sized particles by passing them through a mesh or screen, making it ideal for road building and construction projects.

Do all solutes dissolve in all solvents?

• Yes

• No

• Maybe

• None of the above

Answer explanation

No, not all solutes dissolve in all solvents. Solubility depends on the chemical properties of both the solute and solvent, such as polarity. For example, oil (nonpolar) does not dissolve in water (polar).

Miscibility is another factor that affects the solubility of substances. It is the property of a substance to mix evenly and completely with another substance.  Do you agree?

• Yes

• No

• Maybe

• None of the above

Answer explanation

Yes, miscibility is crucial for solubility. It describes how well substances mix. If two substances are miscible, they will dissolve in each other completely, confirming that miscibility directly affects solubility.