Cullets doesn't float on water.
This depends on the construction of the container but if the constructions are identical (the walls are equally thick, etc) the metal container will loose heat fastest. Different "plastics" have differing coefficients of thermal conductivity and so whether they conduct heat better or worse than glass depends on which "plastic" is in use.
A glass rod should be used when pour liquid into a narrow mouthed container because of the adhesive force between the glass and the liquid. This will cause the liquid to run down the glass rod and into the narrow mouth without spills.
A toxic vapor would be safest in glass container with a tightly sealed lid. Vapors can seep from the smallest opening, so the seal must be firm.
First, use a magnet to get the iron nails out because iron is a magnetic material and will be attracted to the magnet. Now what you have left is the water and oil. Fortunately, oil is less dense than oil and it will float on top of the water. Use a separating funnel to tap the water out from the bottom and collect it in a container. You can also use a spoon to get the oil out from a container which contains the oil and water since oil floats on the surface.
Just fill a container with water. The aluminum is light, and less dense than the water, so it will float to the top of the container. The lead is heavy, and more dense than the water, so it will sink to the bottom of the container. You can then separate the two easily.
Yes, because less new glass is required so it costs less.
Glass
Glass containers are good for jams and jellies because the glass won't react with the acidity of the fruit. Glass is also preferred since you can see the contents.
use pure rainwater, freshly caught in a glass container
A cruet is a glass container used for Oil and Vinegar for salad dressing made at the table. They are usually glass and kind a squatty with a glass stopper and handle.
Terrarium. You can use any old glass container with a lid such as an aquarium
Plastic container because it is easier to wash and glass is breakable, and plastic is just the sort of thing to use for melting chocolate, not glass.
It's best to use a styrofoam container with a lid. Styrofoam will not get as hot as glass or plastic.
Strictly, no. Renewable is usually applied to something like the energy from sunlight or wind, which is still there tomorrow even if we use it today.However, glass is made from silicon (very clean sand, but not rare) with a mixture of added chemicals (soda, lime, antimony oxide etc) to improve the quality. Calumite is also usually added.And of course an important ingredient now is cullet, which is broken recycled glass, which makes glass somewhatrenewable.
Yes, you can, and glass jars with lids work wonderfully for storing honey.
Each chemical need a specific container (and an adequate cap) made from: glass (different types), polyethylene (HDPE as a rule), polypropylene, etc.
You can use a milk container filled with water to weight it down so it doesn't float. You can put one or two bricks in the tank.