Soil fertility and soil pH can be intimidating to both new and experienced gardeners. But your soil isn’t as mysterious as you think, as long as you start by having a soil test done. “Testing your ...

One of the biggest factors affecting the health of plants in your garden is the pH of the soil, which is a measure of its acidity or alkalinity. A pH of 7.0 is neutral while that above 7.0 is alkaline ...

The color of hydrangea flowers can change from pink to purple and blue by tweaking the soil. How do other plants react to those changes? Sydney Kozak explored just that. Her project, “Does changing ...

You're in a committed relationship with your Fitbit, monitor your shuteye via SleepCycle and leant how to calculate your macros in 2015. Now? It may be time to take tracking to a whole other place: ...

A blood gas test measures oxygen and carbon dioxide levels in the blood. The test can also show blood pH levels and lung function. It is also called an arterial blood gas test or a blood gas analysis.

The vagina is a slightly acidic environment, with a pH of less than 4.5. Higher pH levels allow bacteria and yeasts to thrive, which can result in bacterial and yeast infections. Vaginal pH tests ...

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