Science Benchmark 2024

Front

What factors affect the rate of solubility of a substance in water?

Back

Temperature and agitation (stirring) are key factors that affect the rate of solubility. Higher temperatures generally increase solubility.

Front

What is the process of dissolving salt in water called?

Back

Dissolution.

Front

What happens to the solubility of most solids in water as temperature increases?

Back

The solubility of most solids in water increases as temperature increases.

Front

What is a mixture that can be separated by filtration?

Back

A mixture of an insoluble solid and a liquid, such as sand and water.

Front

What is the state of most of Earth's freshwater?

Back

Most of Earth's freshwater is in the form of ice, primarily in glaciers and polar ice caps.

Front

What are atoms?

Back

Atoms are the basic building blocks of matter, consisting of protons, neutrons, and electrons.

Front

What is the significance of the atomic structure in understanding matter?

Back

The atomic structure explains the properties of matter, including how different substances interact.

Front

What is the difference between soluble and insoluble substances?

Back

Soluble substances can dissolve in a solvent, while insoluble substances cannot.

Front

How does sugar interact with water compared to sawdust?

Back

Sugar dissolves in water, while sawdust does not dissolve and floats on the surface.

Front

What is the role of temperature in the dissolution of solids in liquids?

Back

Higher temperatures typically increase the kinetic energy of molecules, leading to faster dissolution.