Science Olympiad Crime Busters

Science Olympiad Crime Busters Arch - answera hill with no deltas tented arch - answeran arch with a sharp corner at the top point plain arch - answeran arch with a more rounded top point loop - answera beanish shape with one delta ulnar loop - answera loop pointing towards the pinky radial loop - answera loop pointing towards thumbs whorl - answera circle like shape with 2 or more deltas plain whorls - answerhas 2 deltas and at least one ridge making a complete circuit central whorls - answerconsists of at least one re-curing ridge or an obstruction at right angles to the line of flow double loop whorls - answerconsists of 2 separate and distant loop formations with 2 separate and distant shoulders for each core accidental whorls - answerconsists of 2 different types of patterns with the expeptation of the plain arch Vegetable fibers - answerBurn Test Observations: (cotton and flax, Cellulose based) 1. Does not shrivel away from flame 2. Ignites immediately with contact to flame, burns really quickly and readily in flame. 3. Continues to burn, has an "afterglow" when removed from flame until fibre expended 4. Smells likes burning paper 5. Ashes are fluffy, small, white to grey-coloured Synthetic fibers - answerBurn Test Observations: 1. Won't light in flames but melts close to the flame. 2. spirals back to stick to the tweezers. 3. Smells of black smoke like burning plastic, slightly sweet.