Review on 🔬 NATIONAL GEOGRAPHIC Dual Student Microscope: Unleashing the World of Exploration by Brian Rogers

The National Geographic Dual Microscope has an amazingly clear lens for an inexpensive microscope. The microscope has 10x and 25x objective lenses that are easily interchangeable. You simply pull the lens to remove it and the next lens is inserted. The distance between the two heads is adjustable, but there is no diopter compensation here. They have a coarse focus knob to set the distance from the sample you are looking at. You have two different light sources, one above your field of view and one below the stage that shines through a condenser lens (a round piece of glass). The condenser lens is easy to remove, so be careful when unpacking. Depending on what you're looking at, the light source from below may be too bright to see detail. We've found that if you take a small piece of wax paper and place it under the glass, it diffuses the light more and the sample is easier to see. Many slides come in plastic sleeves and most are ready to use. (Examples: onion skins, mushrooms, cross sections of earthworms, etc.) An earthworm slide I would recommend spraying more with wax paper to see the individual layers of the gut and epidermis. This set also includes disgusting artemia eggs. and hatchery. Hatching instructions are included in the instructions for use. Making salt water from mineral water and salt without iodine is quite simple. The eggs should hatch in 24-48 hours but we could not see any hatches after four full days of waiting. After research, it turned out that many factors can cause the eggs not to hatch, such as: E.g. water too cold, too many eggs etc. You are asked to put the hatchery on the windowsill and it is cold outside. I'm afraid the shallow water for the eggs might make the water too cold. I will start hatching very soon. The microscope is battery operated and requires 2 AA batteries which are not included. Otherwise, it's almost a complete starter kit for a science-loving teenager. I have children aged 7 and 6 who enjoy looking through a microscope with our help. They love finding things on the street and bringing them in for a closer look! Thanks for watching!