Water can change from one form to another. It can be a liquid, a solid, or a gas. When water freezes, it turns into ice which is a solid. When it heats up, it can turn into steam, which is a gas. This happens because of temperature changes.
Example: You can see this when you put ice cubes in a warm drink. The ice melts into water, and if you boil water, you can see steam coming out of the pot.
Fun Fact: Water is the only natural substance that can be found in three forms: solid (ice), liquid (water), and gas (steam).
Multiple Choice Questions:
1. What happens to water when it gets really cold?
a) It turns to steam
b) It stays the same
c) It turns into ice
d) It disappears
Answer: c) It turns into ice
Explanation: When water gets very cold, it freezes and becomes ice, which is the solid form of water.
2. What do we call water when it is a gas?
a) Ice
b) Snow
c) Steam
d) Rain
Answer: c) Steam
Explanation: When water heats up and turns into gas, it is called steam. You can see it when water boils.
3. What happens to ice when it is warmed up?
a) It melts into water
b) It flies away
c) It turns back into snow
d) It gets colder
Answer: a) It melts into water
Explanation: Ice melts and becomes water when it gets warm enough, which is a change in form.
4. How does water change to ice?
a) By heating up
b) By freezing
c) By boiling
d) By being mixed with something else
Answer: b) By freezing
Explanation: Water changes to ice when it freezes and gets very cold.
5. Which process makes water turn into a gas?
a) Melting
b) Freezing
c) Evaporation
d) Solidification
Answer: c) Evaporation
Explanation: Water turns into gas through a process called evaporation when it gets warm and turns into steam.