EASY SET, CLASS 7 QS

If an object turns from solid to liquid, we call that process…

• freezing
• hardening
• cooling
• melting

If an object turns from liquid to solid, we call that process…

• vaporization
• sublimation
• freezing
• strengthening

If an object turns from liquid to gas, we call that process…

• vaporization
• condensation
• compensation
• constelation

When you heat an iron well above 2000 degrees Celsius, it turns into…

• magma
• molten liquid
• high temperature lava
• none of the answers are correct

When you put a glass of water into a container with temperature 0 degrees Celsius, the water will turn into…

• rock
• indestructible solid
• crystal
• none of the answers are correct

Water's freezing point is 0 degrees Celsius, it means that a 10 degrees Celsius water will…

• becomes ice
• just be a very cold water
• harden
• solidify

Among these objects, one that will NOT melt on high temperature is…

• ice
• wood
• iron
• copper

A reaction that does not involve changing a matter into another form of matter is called…

• physical reaction
• chemical reaction
• alchemy
• magic