Our experiment involved cacti. We wanted to know what environment would be best for cactus growth. We had a cactus in the incubator about 93 degrees F with paper over the incubator door window we also put one in a mini fridge 45 F no light either then we had a cactus in the closet for room temperature 76F. Our controlled variables were light exposure and the amount of water we gave the cactus which was two squirts from a spray bottle every three days. Inaccuracies the cactus in the closet was exposed to more sunlight because other teams had their experiment in the closet so it was opened often. The fridge was opened for food often as well. Another problem was that the temperature in the incubator was too hot for the cactus at 93f when a cactus is better in 85f degrees. Our cactus was a Cardon or false saguaro is native to Mexico and Baja California. It grows to 30 feet in height and 3 feet in diameter. Also its lifespan is 100+ years. Here is a movie made by my teammate of my cactus being cut open.

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to watch it.