G9 Chemistry Afterclass, 25Aug2023

The size of one particle in liquid mercury is ______ the size of one particle in solid mercury.

• bigger than

• smaller than

• the same as

In liquid mercury the distance between the particles is _____ the distance between the particles in mercury gas.

• bigger than

• smaller than

• the same as

The forces between the particles in liquid mercury are _____ the forces between the particles in solid mercury.

• bigger than

• smaller than

• the same as

Rocks that were formed when magma cooled and solidified are ____ rocks.

• igneous

• metamorphic

• sedimentary

Rocks formed from fragments of rock are ___ rocks.

• igneous

• metamorphic

• sedimentary

Rocks formed by the action of heat and pressure on existing rock are ___ rocks.

• igneous

• metamorphic

• sedimentary

Which one is an igneous rock?

• sandstone

• granite

• marble

Which one is a sedimentary rock?

• sandstone

• granite

• marble

Which one is a metamorphic rock?

• sandstone

• granite

• marble

Aluminium is used to make cooking pans because it is _________ .

• a good conductor of heat

• a good conductor of electricity

• strong

• sonorous