Materials Properties and Changes

What is the melting point of Gold ?

• 1065 degrees C

• 1064 degrees C

• 3000 degrees C

• 100 degrees C

• 1087 degrees C

Answer explanation

Gold melts at 1064 C .

Which of them are reversible changes ?

• Ice and Water

• Batter and Cake

• None

• All

• I don't know

Which of them are irreversible ?

• Batter and Cake

• Chocolate and Melted Chocolate

• Matches stick and Burnt Matches stick

• Ice and Water

• None

If the tea is ___, then the sugar will dissolve more easily.

Rusting is a reversible change.

• True

• Yes

• False

• No

Draw the mixed particles of salt and water.