Usually you use a core drill and remove a sample to whatever depth you require.r
Most fence timber is treated, if you test the soil close to it there is a good chance the soil will be contaminated from the timber preservative leaching from the timber to the soil.
xtau
First collect your soil.
to learn about jupiter
The first thing you need to do is get a trowel and bucket, to take samples of your soil. You need to capture several samples from different locations around your lot. Most labs will want samples from 3 inches deep. Dig a handful of soil using a trowel and put it in a bucket. Make sure that your trowel does not have any fertilizer residue to avoid contamination of the sample. Then, mix all the samples together in the bucket and measure up 1-2 cups of soil to be submitted.
Lithosphere
Maybe to prove he went to the moon and they can compare the soil from the moon and soil that is in earth. Same for the rocks comparing them.
Most fence timber is treated, if you test the soil close to it there is a good chance the soil will be contaminated from the timber preservative leaching from the timber to the soil.
Acidity (and other) tests for soil are best done by professionals. Usually, a county or parish will have an agricultural extension agent who can give you information on how to collect soil samples, and where to deliver them for testing.
Samples for what? If you are sampling for the basic test that most extension offices perform, it doesn't matter.
M34a1
xtau
A lot of rocks and soil samples. They also drilled tubes into the moon and brought back core samples below the lunar surface. They also brought back a sample of the solar wind on a sheet of aluminum foil that they put out during their moonwalks.
Various samples of rocks.
rock samples
rock samples
Federal Dept. of Agriculture