It is one word: slideshow.
two
It is two words "tap water" for water from a faucet.
Water views is two words
To ride over the water on a water-ski is hyphenated. However, both a single word and two words seem to be acceptable
"Watermammals" is one word.
There are no one-word English anagrams, but there is the two-word "water cycle".
Bathroom is one word. An example sentence would be "the bathroom is painted turquoise.
Surface Tension
There are two on a standard title slide. One is for the main title and one for the subtitle. You can also have a title only slide, which has just one placeholder.
place the sample on the microscope slide and observe it.
In liquid medium one starts by placing one or two loopfuls of the liquid medium directly on the slide. From solid media such as nutrient agar. One starts by placing one or two loopfuls of water on the slide and then using an inoculation loop to disperse the organisms in the water. Bacteria growing on solkid media tend to cling to each other and mus be dispensed suficiently by dilutiion in water.