A scalpel, or lancet, is a small and extremely sharp bladed instrument used for surgery, anatomical dissection, and various arts and crafts (called a hobby knife). Scalpels may be single-use disposable or re-usable.
The Sahara desert is the largest hot desert in the world, located in the northern part of the African continent. The Desertâs âmean annual temperature exceeds 86 degrees and it could get up to as high as 122 degrees in the summer, and as low as 30 degrees in the winterâ (7).
Sahara Desert. The Sahara Desert is the largest non-polar desert in the world. It is located in North Africa an is nearly as large as Europe or the United States. The name Sahara comes from the Arabic word for desert, sahra.alahari Desert. The Kalahari Desert is located in Southern Africa. Like many deserts, it has large temperature swings, with temperatures dropping to zero at night and then rising to above 40 degrees C (104 degrees F) in the day.