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The temperature at which a solid changes into a liquid is called __________.
melting point
The temperature at which a liquid changes into a gas is called __________.
boiling point
When salt is added to the water, the melting point will be (lower/ higher).
lower
When salt is added to the water, the boiling point will be (lower/ higher).
higher
A measurement of the amount of heat in a substance is called _______.
temperature
The instrument we use to measure temperature is called _______.
thermometer
When carbon dioxide dissolve in the drink, what are the solute and solvent?
The solute is carbon dioxide and the solvent is the drink
When oxygen dissolve in the drink, what are the solute and the solvent?
The solute is oxygen and the solvent is water
You feel cool down when your sweat (evaporate/ condense).
evaporate
You feel cool down when you blow your wet hands. What is the name of the process?
evaporation
When the solute dissolves in the solvent, the solution become _______ appearance.
uniform
The process that a gas changes into a liquid is called _______.
condensation
The change of water vapour into water droplets in the cloud is called _______.
condensation
Water droplets falling down on the earth from the cloud is called _______.
precipitation
Water from the river, lake or stream entering to the ocean is called ______.
collection
Water from the lake or river turning to water vapour in the air is called _______.
evaporation
