Show 2 insulators that can be found in your kitchen.
...
The cup of water is left under the sun became warm after 2 hours Why did the water become warm?
The water warmed up because the heat from the sun is transferred through radiation.
Standing or sitting close to the fireplace to feel warm is an example of what kind of transfer?
radiation
What are the sources of water vapor in the air? Mention 3
A bowl of water left on the table uncovered/ Evaporation from rivers, streams, seas, lakes and reservoirs /Sweat from our skin
The process in which water is absorbed by the trees and soil.
absorption
Show 3 conductors that can be found in your house.
...
The reversed process of sublimation is
deposition
What is insulator?
Insulator prevents or does not allow heat to pass through.
Why you need to wear a thermal jacket during winter?
Thermal jacket is an insulator, it traps the heat of the body from coming out/ prevents the heat transfer from the body to the cold surroundings.
Andy made a fresh orange juice for his afternoon party with his friends. He poured it into the bottle and put it inside the fridge. What do you think will happen to the orange juice after a while? Why?
It becomes cold. the heat from the juice will transfer to the refrigerator.
A bottle of water is left on the sand. What will happen to the particles of water? The water becomes...
moves quickly/warm
What will happen to the glass wall if you drop 3 ice cubes into the glass of water?
The glass wall will have water droplets.
You touch the hot bowl of soup and your hand get burned. This is an example of heat transfer called..
conduction
How does heat from the sun is transferred?
Radiation is transferred through electromagnetic waves.
The process when the water vapor turns into droplets of water and accumulates into clouds is called
condensation
The bottle with the balloon is placed into the bowl of hot water. What will happen to the balloon?
It will inflate/becomes bigger
What are the properties of gas?
It has a fixed mass, but the shape and volume are flexible and it follows the shape of the container.
The process that the solid matter such as dry ice turns into gas.
sublimation
When the dry ice is removed from a closed bucket, it immediately releases
gas/carbon dioxide
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