IC2 Lesson 3 Melting Point and Hardness

Front

What is the melting point?

Back

The temperature at which a solid becomes a liquid.

Front

Do all diamonds have the same hardness?

Back

No, each diamond can have its own hardness, but in this context, they are considered to have the same hardness.

Front

What happens to a substance at its melting point?

Back

It transitions from a solid state to a liquid state.

Front

Can gases have a melting point?

Back

Yes, gases like oxygen do have a melting point.

Front

Does the amount of matter affect its melting point?

Back

No, the melting point is a characteristic property of the substance, not affected by the amount.

Front

Which mineral is harder than Calcite but softer than Apatite?

Back

Fluorite.

Front

What is the significance of observing smoke when heating a substance?

Back

It indicates that the substance is likely decomposing or burning, not melting.

Front

What should you observe to determine the melting point of a substance?

Back

You should observe the temperature when the solid starts to become a liquid.

Front

What is the difference between melting point and boiling point?

Back

Melting point is when a solid turns to liquid, while boiling point is when a liquid turns to gas.

Front

What is a characteristic property of a substance?

Back

A property that helps to identify and distinguish a substance, such as melting point or hardness.