when brown iodine is exposed to starch it turns dark purple. in an experiment, you placed a cornstarch and glucose solution within a small plastic bag. next, you placed the bag in a beaker with water and 10 drops of iodine. after 10 minutes, the solution in the bag turned dark purple and glucose could be found in the iodine water within the beaker. select all that apply.

Which of the following is not a main characteristic that scientists focus on when determining which kingdom an organism belongs to

Diego conducted an experiment to find out what kind of ball bounces the highest when dropped from a five-foot platform. he used a golf ball, a tennis ball, and a soccer ball. he dropped each ball from the balcony once. diego recorded his observations after each drop. what can diego do to best improve the reliability of his results? a) drop each ball from the platform three more times b) record his observations in more than one unit c) write at least two scientific questions after the experiment is complete d) share his results with other people who have done similar experiments you for the !

Onsider the paragraph above. what is one chemical property of water? a) water is a polar molecule. b) water is the universal solvent. c) water reacts with group 1 metals. d) water has a high specific heat capacity.