Year 9 Chemistry GL - Diagonastic test

What is the process of separating a solid from a liquid by passing the mixture through a filter called?

• Distillation

• Condensation

• Evaporation

• Filtration

Which separating technique involves heating a mixture to separate the components based on their boiling points?

• Filtration

• Crystallization

• Distillation

• Evaporation

What is the name of the process used to separate a soluble solid from a liquid by evaporating the liquid?

• evaporation

• distillation

• sublimation

• filtration

In the Earth's atmosphere, which gas is the most abundant?

• Nitrogen

• Oxygen

• Carbon dioxide

• Argon

What is the outermost layer of the Earth called?

• core

• crust

• atmosphere

• mantle

Which layer of the Earth is composed of solid rock and is divided into several tectonic plates?

• solidosphere

• crustosphere

• rockosphere

• lithosphere

What is the name of the process by which plants release oxygen into the atmosphere?

• Respiration

• Transpiration

• Evaporation

• Photosynthesis

Which gas is responsible for the greenhouse effect in the Earth's atmosphere?

• Nitrogen (N2)

• Oxygen (O2)

• Carbon dioxide (CO2)

• Methane (CH4)

What is the chemical symbol for oxygen?

• Oxy

• O

• Oxg

• Ox

What is the smallest unit of an element that retains the properties of that element?

• atom

• cell

• molecule

• nucleus