You need a jar with a lid or it won't work.
Water evaporates more from a jar without a lid because the evaporated water molecules can freely escape into the surrounding air. In a jar with a lid, the evaporated water molecules get trapped inside, reducing the rate of evaporation.
no
Heating the lid of a jar causes the metal to expand, breaking the seal between the lid and the jar. This makes it easier to open because the pressure inside the jar is released, reducing the force needed to twist the lid off.
Yes, a jar lid can have a screw-on design to secure it tightly onto the jar. This type of lid is commonly used for sealing jars to keep the contents fresh and prevent leakage.
A lid that has been removed from a jar.
A Lid. Because a jar does not have edges.
Bottle is to cork - as jar is to LID.
A faucet handle and jar lid are simple machines.
A type of simple machine found on the lid of a pickle jar is a screw. Turning the lid either tightens or loosens the screw, allowing you to open or close the jar.
You pour it into a mason jar and close the lid.
There are two main components to the answer. Both depend upon the fact that metal and glass expand when heated: 1) The metal in the lid might be a kind of metal which expands faster than glass when heated. So, if you heat the jar and the lid together to above room temperature, the lid will become a little too big for the jar, and will come off more easily. 2) If you direct the heat to the lid only, and avoid heating the glass, the lid will get hotter than the glass, and will expand, while the size of the jar remains the original size. This, too, will cause the lid to be too big for the jar, and cause it to come off more easily.