Page 40 - Just for Middle School Life Science Mini Catalog

MIDDLE SCHOOL LIFE SCIENCEHUMAN BODY, CONTINUEDRewiring the Brain—Super Value KitCan pain and other sensations be felt by a missing body part? In this activity, students perform experiments that demonstrate the brain’s remarkable ability to “rewire” itself and that body awareness is a learned sensory experience. First, students feel like their noses are two feet long. When shown a picture of a hand being touched, students sense their own hand moving and being touched. FB1743 I $29.00Kidney Function Model— Student Laboratory KitStudents build a model nephron, the filter-ing unit of the kidney, and investigate how it filters substances out of simulated blood. Simulated urine is analyzed with common urinalysis tests, and students learn the role of the kidneys in maintaining chemical balance and that urinalysis is a vital diagnos-tic tool for physiological health conditions. FB1859 I $61.00Simulated Urinalysis— Student Laboratory KitSafely and cleanly learn the basics of urinal-ysis with simulated urine samples. Students test five different simulated urine samples for five common urinalysis factors. Results are compared, and preliminary indications about the health of the tested individuals are explored. 2 options available at flinnsci.com$62.45–$122.65Digestive Enzymes at Work—Super Value Laboratory KitExplore the role of enzymes and chemical reactions in human digestion. The lab starts with amylase catalyzing an initial breakdown of starch molecules in the mouth. Students observe the reaction of pepsin with protein molecules in a stomach-acid environment and then analyze milk “digestion” by lipase, which catalyzes the hydrolysis of milk fat into fatty acids in the small intestine. 2 options available at flinnsci.com$45.45–$85.65Enzymes—The Catalysts of Life—Student Laboratory KitExamine a digestive enzyme reaction and measure the effects of enzyme concentra-tion, temperature and pH on reaction rates. After collecting initial data, students design their own experiments to explore other vari-ables in enzyme reactions.2 options available at flinnsci.com$45.45–$99.60See more at flinnsci.com