Question

How can you make your own hydrometer. Explain in steps. ​

Answer 1

Answer:

Explanation:

hi

Build Your Own Hydrometer

You can build your own simple hydrometer using the following readily available materials

• A large diameter drinking straw (the kind they give with

slushies at the gas station work great)

• Aluminum foil

• A small bolt or screw

• Hot glue and a hot glue gun

• Sugar

• Water in a deep container, such as a tall vase or a bucket

• Sand

• A sharpie marker

To build your hydrometer, first hot glue a bolt with its threads

inserted in one end of the straw. Be sure to seal the opening

of the straw around the bolt with glue so that no water can

enter the straw from that end. Now place the straw, screw side

down, into the water. It should float with about half the straw

sticking vertically out of the water. If it floats too high, pour

a few pinches of sand into the open end of the straw to make

the hydrometer float lower in the water. Now plug the open end

of the straw with a small piece of aluminum foil and cover this

plug with hot glue, again sealing the opening with the glue. You

now have a hydrometer, minus the meter.

To calibrate it, first float the straw in the water and mark

with a sharpie the point where the water surface meets the straw.

1

Now repeat this last step with various solutions of sugar water. Measure the volume of the water and then bring it to a boil

in a pot. Add to the boiling water a quantity of sugar equal to

roughly 5% of the volume of the water and stir until completely

disolved. Let this solution cool, then float and mark the hydrometer again. This mark should be lower on the straw than

the first.

Repeat this process by first adding enough water to the solution to bring the volume back to the original amount, boiling,

and then adding another 5% portion of sugar and disolving.

Cool the solution, then float and mark the straw again. Continue adding marks until you are satisfied with your calibration

or until the sugar will no longer dissolve.

A note to those chemists out there: The sugar solutions that

you are creating in this process are not actually very well designed. To do this more carefully, you would create solutions

that are actually 5%, 10% etc sugar by weight. This requires

accurate scales. It is also much easier to do if you create a

separate solution for each concentration. If this level of detail

is required, it is recommended that you begin with something

other than a plastic straw when building your hydrometer

hope it helps

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Answer 2

● Make your intervals. Use a penvil to mark down the edge of a piece of paper.....

● Cut strip from the paper. Cut the side of the paper that you marked on into a long, thin strip....

● Insert the strip of paper into a glass tube. Use a tube roughly the size of drinking straw....

● Seal one end of the tubing....

● Cut any excess paper.....