IC2 Lesson 3 Melting Point and Hardness

Front

What is the melting point?

Back

The melting point is the temperature at which a solid becomes a liquid.

Front

What is hardness in minerals?

Back

Hardness is a measure of a mineral's resistance to scratching.

Front

Which mineral is the hardest on the Mohs scale?

Back

Diamond is the hardest mineral on the Mohs scale.

Front

What is the Mohs scale?

Back

The Mohs scale is a scale that ranks minerals based on their hardness from 1 (talc) to 10 (diamond).

Front

Can two minerals have the same hardness?

Back

Yes, two different minerals can have the same hardness.

Front

What is an example of a mineral that can scratch a penny?

Back

Quartz can scratch a penny.

Front

Does the color of a substance affect its melting point?

Back

No, the color does not determine the melting point.

Front

What is the relationship between the amount of matter and melting point?

Back

The amount of matter does not affect the melting point.

Front

Can common objects be used to compare hardness?

Back

Yes, common objects like fingernails and pennies can be used to compare hardness.

Front

What happens to a solid at its melting point?

Back

At its melting point, a solid begins to turn into a liquid.