PSLE Science: Matter and Compression

What is the main focus of the video presented by Malcolm?

• Analyzing a past year math question

• Reviewing a history examination

• Exploring a science experiment on matter

• Discussing the properties of metals

Why can't honey be compressed?

• It is a plasma with high energy

• It is a gas with no definite volume

• It is a liquid with a definite volume

• It is a solid with a fixed shape

What happens to the plunger when air is compressed in the syringe?

• The plunger does not move

• The plunger breaks

• The plunger moves slightly

• The plunger moves significantly

Which option correctly describes the compressibility of air?

• Air is a liquid and can be compressed

• Air cannot be compressed

• Air is a solid and cannot be compressed

• Air can be compressed due to its gaseous state

What is the state of matter for salt?

• Liquid

• Plasma

• Gas

• Solid

Why can the plunger move when compressing salt?

• Salt is a liquid

• Salt particles have air spaces

• Salt is a gas

• Salt is a plasma

What is the main reason cotton wool can be compressed more than salt?

• Cotton wool is a liquid

• Cotton wool is a gas

• Cotton wool has larger air spaces

• Cotton wool is heavier

What is the key difference between the compressibility of cotton wool and salt?

• Salt is a gas, cotton wool is a liquid

• Salt is a liquid, cotton wool is a solid

• Cotton wool has more air spaces than salt

• Cotton wool is denser than salt

What is the correct conclusion about the compressibility of the substances tested?

• None of the substances can be compressed

• Both air and cotton wool can be compressed

• Only air can be compressed

• Only honey can be compressed

Which option was determined to be the only possible answer in the experiment?

• Option 2

• Option 4

• Option 3

• Option 1